This was the first time i ever shot in my buttocks, I use the same stuff and same routine when I shoot in my delts my thigh and never had a problem. I shot for the first time in my ass and it felt fine. 3 days pass and my but cheek has swelled up and feels like a bruise? I'm using test E and like I said It has never done this before.Do you all think its because it was the first time?