I’ve been drinking a lot more water the last 5 years which lessened the headaches a little bit. But tbh, I think I drink enough water actually, hard to say exactly how much, but at least before bed (quite) a few glasses of water. During the day (when outdoors) I could probably drink more water, but my body fairly readily produces a lot of urine, or I just have a small bladder, but I’m more inclined to the former one. But waking up with a headache caused by dehydration is unlikely due to drinking the night before bed. I varied the amount of water, but had little effect, except needing to go to the bathroom 5 times before falling asleep. (Not that the water is holding me back from sleeping, but I usually read in bed 1-2 hours, so my kidneys start doing their thing. On that note, reading posture is also unlikely a cause since I only started reading recently (~few years).)

I sometimes do eat a lot of candy (and have throughout my life), but still, even with many months of abstaining from it, there was no difference in headaches. I did not ever take any glucose test. (I once almost did.)

The ADHD diagnosis and med are still relative recent things (~since start of 2024). I’m still experimenting with the meds, what their exact effects are on me, etc. I think they make my head a bit more calm, empty, relaxed, but idk yet, I’m skeptical and cynic of everything until I have tested it thoroughly. I’ve been on and off of the meds, actually… The psychiatrist said it was ok to do this. But whatever, they’re more here to help me study, rather then help me in life.