Well I wanted to see what you guys thought, well I went to do some cardio at the gym, some bag and running, I took my noxplode and went to the gym, I started warming up doing some pushups and pullups and at the end of my pullups I got a huge headache all of sudden. My body got hot and blood rushed to my head and neck area. I cooled down a bit, drank some water, and took some breathes tried again and even worse. So I packed up and left. I am currently taking that and true mass as far as suppplements go, I consider myself in good shape and probably at the top shape of my life. I felt fine, and have been taking the supplements for about two months with no similar problems, I eat fine and got plenty of sleep. Just wanted to get some comments on what it could of been, and if anyone has gotten similar reactions. Trust me this wasn't an ordinary headache I would have just continued if so. This was pretty damaging.