Why don’t I feel like myself anymore?

Why Don't I Feel Like Myself Anymore?

If you've found yourself Googling that question at some point (probably at 3am, wide awake for no apparent reason) you are not alone. It's one of the most common things I hear from women in my clinic, and it's one of the most distressing aspects of perimenopause. Not just the physical symptoms, but that unsettling sense that somewhere along the way, you lost yourself.

You still look the same on the outside. You're showing up, doing all the things you've always done. But something feels fundamentally different. You're more anxious than you used to be. More irritable. Everything is more of an effort. You’re more tired - not just physically, but emotionally too. You're forgetting words mid-sentence. You're crying at things that wouldn't have touched you before, and feeling nothing at things that used to bring you joy. You feel disconnected - from your body, your relationships and yourself.

This isn't a midlife crisis. It isn't weakness, it isn’t (necessarily) depression, and it certainly isn't ‘just your age’. There is a very real physiological reason why you feel the way you do, and understanding it is the first step to feeling better.

What's actually happening in your body

Perimenopause is the transition phase leading up to menopause, and it can begin as early as your mid-thirties, often years before most women expect it. It's not a sudden switch, it's a gradual, fluctuating shift in your hormones that can span anywhere from a few years to over a decade.

The key hormones involved are oestrogen, progesterone and testosterone, and as their levels begin to decline (while also fluctuating unpredictably in the case of oestrogen), the effects ripple through virtually every system in your body. Because here's what most people don't realise - these hormones don't just govern your menstrual cycle. They influence your brain, mood, metabolism, sleep, gut, joints, bones skin and sense of identity. When they start changing, everythingcan change with them.

Your brain is changing

Oestrogen is significantly involved in brain function. It supports the production and activity of serotonin, your feel-good neurotransmitter, as well as dopamine which drives motivation, pleasure and reward. It also plays an important role in maintaining the myelin sheath that coats your nerve fibres and keeps signals firing efficiently.

As oestrogen fluctuates and declines, so can your mood, motivation and mental sharpness. Brain fog (that frustrating inability to think clearly, find words, concentrate or complete simple tasks - your brain literally feels foggy) is one of the most widely reported symptoms of perimenopause, and it has a direct neurological explanation.

Your anxiety is not in your head, it's in your hormones

If you've suddenly developed anxiety that seems to come from nowhere (a feeling of dread that you can't explain, a racing heart, a tendency to catastrophise, not wanting to leave the house, worrying about things you never used to…) this is one of the most telling signs of perimenopause, and one of the least talked about.

Progesterone has a naturally calming, anti-anxiety effect in the body. It acts on GABA receptors in the brain, creating a sense of calm and ease. As progesterone declines in perimenopause, anxiety can increase. Women who have never struggled with anxiety in their lives suddenly find themselves overwhelmed by it, often without any obvious external cause.

At the same time, fluctuating oestrogen affects the stress response, making the nervous system more reactive and less resilient. Oestrogen acts as a buffer against cortisol, so when oestrogen declines, so does our cortisol tolerance. Small things feel bigger, everyday pressures feel harder to manage, and we experience heightened anxiety and irritability. And because nobody talks about this connection to hormones, many women end up being prescribed antidepressants or anti-anxiety medication when what their body actually needs is hormonal support.

You're exhausted, but you can't sleep

Progesterone also has a sleep-promoting effect, so as levels drop, quality sleep becomes increasingly difficult to come by. Waking between 1-3am is almost a hallmark of perimenopause – one reason is that your cortisol (stress hormone) naturally rises in the early hours, and without adequate progesterone to counterbalance it, that early morning waking becomes a nightly occurrence.

Another reason for waking in the early hours is down to a change in how the body handles blood sugar. As oestrogen and progesterone begin to fluctuate and decline, cells become less sensitive to insulin (more insulin resistant), meaning the body has to produce more of it to keep blood sugar stable.

What typically happens is that blood sugar dips overnight, and because the body interprets low blood sugar as a stressor, it releases cortisol and adrenaline to bring glucose levels back up. The trouble is, those hormones are stimulating, so you wake up wide-eyed, sometimes with a racing heart or a busy mind, when you should still be deep in restorative sleep.

Poor sleep then has its own cascading effect on mood, cognitive function, appetite, metabolism and emotional resilience. Everything is harder to deal with when you're chronically under-rested.

Your mood and emotions feel unpredictable

One day you feel fine, the next you're snapping at people you love, dissolving into tears, or feeling a flatness and disinterest in things that used to light you up. Perimenopause can bring mood swings that feel reminiscent of the worst PMS you've ever had, except they don't follow a predictable monthly pattern, which makes them even harder to navigate.

This emotional unpredictability is directly linked to the fluctuating nature of oestrogen during perimenopause. Unlike menopause, where oestrogen gradually declines, in perimenopause it spikes and dips erratically, and your brain, which is exquisitely sensitive to these changes, responds accordingly. Some women describe a kind of emotional rawness - feeling things more intensely, finding it harder to regulate their responses and losing the sense of steadiness they used to take for granted.

Your body is changing

Do you ever feel like you just look at a cake and put on weight? As I explained earlier, in perimenopause the body becomes more insulin resistant, and this is a major reason why we often gain weight, especially around the middle. Even when eating the same and exercising the same as you used to, you might be putting on weight and/or unable to shift it. And this can be really hard to deal with when you don’t recognise the person in the mirror.

Your sense of identity can shift too

This is the part that often goes unspoken, but it's so important. Many women in perimenopause describe not just physical and emotional changes, but a deeper sense of not recognising themselves. The things that used to motivate them no longer do. Relationships that felt easy now feel complicated. Career paths that felt fulfilling suddenly feel hollow. There's a restlessness, a questioning, a feeling of is this it?

Some of this is hormonal (dopamine and oestrogen together play a significant role in drive, reward and purpose). But some of it is also a very natural and valid life transition. Perimenopause often coincides with significant life changes - children growing up, ageing parents, career shifts, relationship changes - and the hormonal turbulence can amplify the emotional weight of all of it.

This doesn't mean something is fundamentally wrong with you or your life. But it does mean you deserve support, not just to be told to push through.

So what can you do?

The most important thing is this: what you're experiencing is real, it's physiological, and it's not permanent. Perimenopause is a transition, not a destination. And there is so much that can be done through nutrition, lifestyle, and where appropriate, medical support, to help you feel significantly better.

From a nutritional perspective, supporting your hormones through this transition means eating to support hormone production and detoxification, nourish your brain and nervous system, stabilise blood sugar (which has a profound effect on mood and anxiety) and support your gut microbiome (which plays a key role in oestrogen metabolism).

Lifestyle strategies should not be overlooked as they can be as important as the food we eat. We need to focus on movement, building stress resilience, getting natural daylight, being in nature and supporting sleep, which all fit together as part of a big jigsaw puzzle of strategies that help improve our experience of perimenopause.

This is exactly the work I do with women every day - helping them understand what's happening in their bodies and building a practical, personalised plan that helps them feel like themselves again. And it is possible to get back to feeling yourself with a few simple adjustments. Because you deserve to not just survive this transition, but to genuinely thrive through it.

If any of this resonates, I'd love to help. You can book a free 15-minute call with me here or drop me a message - I'm always happy to chat.