The way I messed up on DNP was not drinking enough water. It made me hot at first but not to the point that I was very uncomfortable. For that reason, I kind of neglected to drink enough water. However at some point, all that changed with loading up on the DNp and at about a week plus, I started getting crazy headaches which I think was from not getting enough water from the begging to that point. At this point I was very uncomfortable and sweat a lot at night, and could have slept all night outside without a shirt on and been fine. When I realized that I was too dehydrated, I could not keep the water down, and just threw it up. My best advice is, less is better than more, and stay on top of your water. I had to quit it early because I didn't realize how much water I lost due to sweating ect. I'll try it again, but I am going to wait a little while for my body to be 100 percent normal again. BTW while I was on it, my family said I stunk,, I was always very fatigued on 400 and breathed heavy, but on 200 I barely felt it. I didn't even think I had good stuff until I went to 400 and took 600mg for 1 day and then had to quit.