I have been taking "six star N.O. Fury" for 3 days now.. and I have increased lift weight during workouts significantly.. I went up 15 lbs on dumb bell press.. about 25 lbs on flat bench... And I was wondering if this is safe.. I am at the point that it is difficult to move because I am really sore.. and I have had to stretch all day because I am getting stiff.. has anyone else experienced this??? Is this what's supposed to happen??