Had a couple of cans of Celsius the other day both working out at the gym and in my squeeze bottle on the ride home - had a great workout but felt really funky a while later. I sense it was because of the Celsius. Hard to describe but felt mildly queasy, something was just off - it wasn't a good feeling. Very similar to the way I felt when I tried Crystal Light years ago and concluded that Aspartame doesn't agree with my system, but there's no Aspartame in Celsius. Anyone else experience something like this?