I'm 40 and Suddenly Feel Like a Different Person. Could It Be Perimenopause?

Have you reached your forties and started wondering what's happened to the person you used to be?

Perhaps you've always been fairly easygoing, but lately you find yourself irritated by the smallest things. You're more anxious than you remember being, your sleep has become unpredictable, and you seem to have lost the ability to tolerate things you once wouldn't have given a second thought.

You might even find yourself questioning your relationships, your career or the way you've been living your life.

And perhaps the strangest part is that, from the outside, nothing has necessarily changed.

You're still going to work, looking after your family, managing the household and doing all the things you've always done.

But inside, something feels different.

If this sounds familiar, you might be wondering whether perimenopause has something to do with it.

And the answer is that it certainly could.

Can perimenopause really change how you feel emotionally?

When we think about menopause, we tend to picture hot flushes, night sweats and eventually our periods stopping.

But for many women, the first noticeable changes are much less obvious.

You might find yourself becoming more anxious, experiencing mood swings, struggling to concentrate or feeling emotionally overwhelmed.

Perimenopause is the transitional stage leading up to menopause, when levels of hormones such as oestrogen and progesterone begin to fluctuate.

These changes can affect both physical and emotional wellbeing, although the relationship between hormones, mood and behaviour is complex.

Some women experience very few symptoms. Others find that perimenopause affects their sleep, relationships, work and everyday life quite significantly.

And while it commonly begins during the forties, the timing varies.

So if you're around 40 and suddenly feeling unlike yourself, perimenopause is certainly one possibility worth exploring.

Signs of perimenopause you might not immediately recognise

Not everyone experiences the same symptoms, and you don't need to have hot flushes to start wondering whether something hormonal is happening.

Some of the changes you might notice include:

• Feeling more anxious or worried than usual
• Becoming irritable or experiencing mood swings
• Waking during the night or struggling to sleep
• Feeling unusually tired
• Difficulty concentrating or experiencing brain fog
• Changes in your menstrual cycle
• Headaches, migraines or joint discomfort
• Feeling less interested in sex
• Finding everyday responsibilities harder to manage

Of course, these symptoms aren't exclusive to perimenopause.

Thyroid conditions, iron deficiency, depression, chronic stress and other health problems can cause similar experiences, so it's important to consider other explanations too.

If you've noticed a significant change in your wellbeing, your GP can help you explore what might be contributing.

Why am I suddenly less tolerant of everyone?

This is something I find particularly interesting about midlife.

Perhaps you've spent years being the person everybody relies on.

You're the organiser, the problem solver, the one who remembers everything, keeps everybody happy and somehow manages to hold everything together.

And then, somewhere in your forties, you begin to realise that you're absolutely exhausted by it all.

You might find yourself becoming less willing to say yes when you really mean no, less interested in keeping everybody else comfortable or increasingly aware that you've been putting your own needs aside for years.

Sometimes this can feel unsettling, particularly if you've always thought of yourself as someone who's patient, accommodating and happy to help.

But I don't think we should automatically assume that every change in our tolerance or relationships is caused by hormones.

Midlife can be a period when we start looking at our lives differently.

Perhaps the children are becoming more independent, relationships are evolving, we're thinking about ageing, or we're simply beginning to question whether the life we've created still reflects what we want.

Hormonal changes may be happening alongside all of this, potentially making an already demanding stage of life feel more difficult.

And sometimes, what feels like becoming a different person might also involve beginning to recognise your own needs more clearly.

What about the anxiety that seems to come from nowhere?

Anxiety can be particularly distressing when you've never really experienced it before.

You might wake in the morning with a feeling of dread, find yourself worrying about things that never used to concern you or suddenly feel overwhelmed by situations you've managed perfectly well for years.

For some women, anxiety increases during perimenopause, potentially influenced by hormonal fluctuations, disrupted sleep and other factors.

But anxiety shouldn't simply be dismissed as hormones, particularly if it's severe, persistent or affecting your everyday life.

There are effective treatments and support options available, including talking therapies and medical treatment where appropriate.

If anxiety is something you're experiencing, I've also written about why anxiety can increase during perimenopause.

Why does everything feel harder when you're not sleeping?

One of the things that can make perimenopause particularly difficult is how closely our sleep and emotional wellbeing are connected.

Perhaps you're waking at 3am every night, struggling to get back to sleep and then trying to function as normal the following day.

When you're exhausted, everyday frustrations can become much harder to manage. Your concentration may suffer, your anxiety can increase and your patience might disappear more quickly than you'd like.

And when this happens night after night, it can begin to affect how you feel about yourself.

Sleep problems during perimenopause can be associated with hormonal changes, night sweats, mood changes and other health or lifestyle factors.

If your sleep has deteriorated significantly, it's worth discussing it with your GP rather than simply accepting exhaustion as part of getting older.

You can also read my article on why you might be waking up at 3am during perimenopause, where I explore some of the possible causes and practical ways to improve your sleep.

Could this be a turning point in your life?

I think there's another conversation worth having about this stage of life, and it's one that goes beyond hormones.

For many women, their forties can bring a growing awareness of how much of their lives they've spent meeting other people's expectations.

Perhaps you've spent years being a good employee, partner, mother, daughter or friend, and somewhere along the way you've forgotten to ask what you actually want.

You may begin noticing patterns in your relationships, questioning responsibilities you've always accepted or wondering whether you want the next twenty years to look like the last twenty.

That doesn't necessarily mean there's something wrong with your life.

And it certainly doesn't mean you need to make dramatic changes.

But sometimes midlife creates an opportunity to reflect on what matters to you now.

I think it's important to make space for both sides of the experience.

If you're struggling with perimenopause symptoms, you deserve appropriate medical support and treatment. You shouldn't have to turn those symptoms into a personal growth exercise.

But if you're also finding yourself questioning your direction, your boundaries or what you want from life, those feelings deserve some attention too.

Both things can be true.

What can you do if you're feeling unlike yourself?

The first thing I'd suggest is to take what you're experiencing seriously.

You don't have to wait until you're struggling to function before asking for help.

Speak to your GP

If you suspect perimenopause, your GP can review your symptoms, consider other possible causes and discuss treatment options.

For women aged 45 and over, perimenopause can often be identified clinically without routine hormone blood tests. Between 40 and 45, blood tests may sometimes be useful depending on your symptoms and circumstances.

Hormone replacement therapy (HRT) can help with a range of menopause symptoms, although whether it's appropriate depends on your individual health and preferences.

Pay attention to what has changed

You might find it useful to keep a simple record of your sleep, menstrual cycle, mood, anxiety and physical symptoms.

It doesn't need to become another complicated task. Even a few notes over several weeks can help you recognise patterns and give you something useful to discuss with your GP.

Consider the demands you're placing on yourself

This isn't about blaming stress for everything or assuming you can solve hormonal symptoms by relaxing more.

But it is worth asking yourself whether you're giving yourself enough opportunity to rest and recover.

Are you constantly rushing?

Do you feel responsible for keeping everybody else happy?

Have you got space for things that you actually enjoy?

And are there expectations you've been carrying for years that might be worth reconsidering?

Sometimes small practical changes can make everyday life feel more manageable.

Find the right kind of support

Different women need different things.

For some, medical treatment makes an enormous difference. Others may benefit from psychological support, changes to their routines or having someone to talk to.

And for some women, complementary therapies can provide a valuable opportunity to slow down and focus on their wellbeing alongside conventional care.

Holistic support for perimenopause and midlife in North Devon

I'm Jill, a Clinical Reflexologist and Reiki Master Practitioner based in Northam, near Bideford, and I work with women navigating perimenopause, menopause and the wider changes of midlife.

Something I've noticed through my work is that women often come to me with several things happening at once.

They might be experiencing disrupted sleep, anxiety or exhaustion, but they're also managing significant life changes, emotional demands or a feeling that they've somehow lost touch with themselves.

My approach is to give you the time and space to explore what's happening without assuming there's one simple explanation.

For women who want to look more deeply at their wellbeing, I offer a Synergy Pattern Assessment.

This is a two-hour appointment combining an in-depth conversation with clinical reflexology, Reiki and my wider therapeutic approach.

We look at how you're feeling physically and emotionally, what's happening in your life and whether there are any recurring patterns that might be worth exploring.

This isn't a medical assessment or a way of diagnosing hormonal changes, and complementary therapies haven'