for the past 3 weeks, I have felt like throwing up during my workouts. this happened to my friend all the time back in the day and i always laughed at him thinkin hes just bein a puss. now its happening to me and its makin its killing my workouts. seems like alot of gas build up. ive started taking noxplode recently but for the first week or so, i didnt have that problem. anyone know what causes this?