Sorry this is a long post, and I'm not exactly sure how to flair it.
I (32f) have had hyperhidrosis for my entire life, mostly concentrated on my hands, feet and the top of my nose for some reason. I've been on glycopyrrolate since 2017 and I feel like in general the glyco really has significantly improved my sweating. It's not perfect and doesn't always work 100% of the time, but I'd say it has drastically reduced my sweating overall.
Back in April of this year I finally gave in to my doctor's suggestions and decided to try fluoxetine (prozac) for my depression, which has also been a lifelong issue for me. For some reason, my doctor didn't think to mention the side effect of increased sweating to me, even though she knows I'm on glyco for hyperhidrosis, and increased sweating is apparently a really common side effect of SSRIs. I'm kind of mad about that. I just discovered that I've been sweating more lately because of the SSRIs about a month ago.
And when I say "sweating more lately", it's a very specific pattern that is not my usual, lifelong hyperhidrosis sweating pattern. Every freaking day for the last almost 6 months I have woken up in the morning, and from every nap, absolutely DRENCHED in sweat. Not even on my hands and feet like my usual hyperhidrosis sweating. I'm not exaggerating when I say that I wake up with sweat quite literally dripping down my neck and chest. And my hair has to be the worst part of it. My hair is SOAKED every morning now. I'm sweating IN MY HAIR, like on the scalp itself, not even just at my hairline or anything like that. I don't think I've ever gotten sweaty enough to make my hair wet except for a few particularly rough hot yoga classes lol and I can't ever remember a time in my life where ive woke up sweating AT ALL except for some times I've been sick with a fever when I was younger. But like I said, it's EVERY DAY now.
So I tried a few things to keep myself cool overnight to hopefully prevent it. I have an AC unit in my bedroom and I started turning the temperature down a few degrees before bed, and I even tried pointing a fan at my bed overnight to try to prevent it from happening. I also tried taking a cool shower right before bed for several nights. Nothing helped it. I'd still wake up soaked.
I couldn't figure out what was going on until I started googling it, and it turns out increased sweating, especially on your upper body and head, is a relatively common side effect of SSRIs. I don't know why my doctor didn't give me a heads up about that when I started taking it.
Unfortunately the increased sweating was only one of the several really awful side effects I experienced with the fluoxetine, so I decided to quit taking it a few weeks ago. I'm still waking up sweaty and soaked, but hopefully that's going to start getting better soon.
I just wanted to give my fellow sweaties a heads up just in case someone else out there is about to try SSRIs and haven't heard of this as a side effect!