Is It Perimenopause or My Thyroid?

There's a particular kind of embarrassment I hope you've never felt. You're in the middle of a conversation. You know exactly what you want to say — the thought is right there — and you reach for the word, and it's gone. You stall. You cover it with a laugh, and you feel the sharp, capable version of yourself slip a little further out of reach.

That was me on a summer morning in 2024, standing at my counter, staring at the coffee pot like it might rescue me. So drained the day felt impossible before it had started. Waking at 3 a.m. for no reason. Losing my words in the middle of sentences, again and again.

I had brought all of it to my doctor. And what I heard was: "Your labs look normal, and your thyroid numbers are great. Take it easy — and maybe consider hormone therapy to ease your symptoms." I stood there with my coffee going cold and thought: if everything is normal, why do I feel like a stranger in my own body?

Maybe you've had your own version of that morning. If you have, I need you to hear this first: you are not imagining it, and you are not making too much of it.

The thing no one tells you

Here's what took me too long to understand: what you're feeling might not have one name. It could be perimenopause. It could be your thyroid. It could be both at once — quietly overlapping, each one hiding the other. And those two are mistaken for each other constantly.

They share almost every symptom: the exhaustion, the brain fog, the weight that creeps on while nothing about your life has changed, the thinning hair, the cold hands, the mood that turns without warning. When your symptoms could belong to either, it becomes genuinely hard — even for a good, caring doctor — to tell at a glance which one is speaking. And because perimenopause is such an expected part of midlife, it becomes the easy answer. The thyroid gets waved past. Or the reverse happens, and the hormone shift underneath never gets named at all.

I once sat with a woman of 45 who'd been told for a long time that what she felt was just stress. When we finally looked deeper, her thyroid antibodies were through the roof — textbook Hashimoto's. She wasn't stressed. She was unwell, and unheard. She'd simply been handed the convenient answer and sent home.

Why "normal" can still mean something's wrong

In early perimenopause, your hormones don't simply drop — they swing. Up, down, unpredictable. So a single blood test catches one moment of a constantly moving picture, and that moment can look perfectly "normal" while you feel anything but. One snapshot of a whole storm it can't see.

The thyroid has its own version of this. Standard panels don't always tell the full story — and the antibodies that reveal Hashimoto's often aren't tested at all, unless someone specifically asks. That word — asks — is the whole reason I'm writing this.

What I did next

I went back. And instead of accepting "your thyroid numbers are great," I asked a specific question: I'd like you to run my thyroid antibodies.

They came back positive. It was Hashimoto's — returned, most likely stirred back to life by the very hormonal shifts of perimenopause I'd been told to simply "take it easy" through. Two things, tangled together, each one deepening the other. Exactly the overlap that gets missed.

I'll be honest about how that felt: not defeat, but relief. Finally, a name. Finally something real to work with instead of a shrug. My body had been telling the truth the whole time — I just needed the right question to hear it. And I didn't get that answer because a doctor handed it to me. I got it because I asked.

You are allowed to ask

Here's the honest part: you often can't tell, on your own, whether it's perimenopause or your thyroid or both — and you shouldn't have to. That's what proper testing is for. But you can become the clearest, most informed observer of your own body, and that changes everything about how your next appointment goes.

Notice the patterns. Does it track with your cycle, or move on its own? Are you cold when everyone else is warm? What changed, and when did it start? None of that is a diagnosis — it's evidence, and you're allowed to walk in holding it. Before your next appointment: write down what you're feeling and when it began, ask for your thyroid to be evaluated (and ask what's being tested), and ask the one question that opens both doors at once: "Could this be perimenopause, my thyroid, or both?"

You deserve to be taken seriously. You deserve to have both doors opened, not just the convenient one. And you deserve to be believed — the first time.

Your body speaks to you in a special language. Start listening. It has been telling the truth all along; sometimes we just need a little help learning to translate it — and someone in your corner while we do.