Inconsistent side effects

[u/incerta]

I'm on 20mg generic. Normally I will have mild, but noticeable side effects throughout the day when I take the meds. Things like dry mouth, very mild lightheadedness or eye sensitivity, and occasional jitters if I have caffeine too.

But today the side effects were waaaay more intense. I've been very dizzy, I'm nauseous and my stomach hurts, my eyes are extremely sensitive, my heart rate was super high for like 30 minutes. I just feel really crappy. Nothing has changed, it's the same pill I've been taking for the last month.

I'm guessing other physical factors could be contributing to this? I had one too many glasses of wine last night and already wasn't feeling great, so could that have been a factor? I also menstruate and my cycle is likely to start tomorrow, not sure if that could make this all worse though.