I didn't experience increased perspiration, but very increased urination.
It's definitely dehydration and water weight; Today I experienced extreme cramping while training. Setting up my back caused my lower back and hips to cramp. My feet also occasionally cramped up during leg drive.
I will increase water intake and maybe buy some magnesium and taurine.
Currently up to 24mg/day. Will stay at this dose. Great energy and focus, am getting good results in a short time span, and the stimulant effect is quite nice. I feel very social, confident and energetic.
Only downsides are some slight tremors and taking a bit longer to fall asleep, despite taking my last pills many hours before bedtime.
No biggie though. Am happy with the results so far.