ok 2 times a week i take a 3cc shot yes i alternate glutes well i dont look at my ass very often and it doesnt hurt i mean theres a little bump not red or hot but i was changing clothes and my left cheek 6 inches long 3 inches wide just below my waist is black and purple and blue i mean i would not have known till next shot if the wife ahdnt seen it . wtf, did i hit a blood vessell and not know or what is the deal