going to the gym normally you would be lucky to actually gain a pound in a week, when i took creatine, i put on 6lbs in one week, but it was just water no real muscle mass, have ou grown i remember my weight jumped from 160-180 in about 2 weeks, i got freaked out because i didnt get fat, but i didnt know where this weight cam from, then i measured myself and i had grown 4 inches