dude, about 1 year ago i took an injection of omnadren in my ass. in about 2 days the injection site started to hurt and get swollen.in about a week it was the size of a golf ball, no kidding. i couldn't sleep on my side, and had trouble putting on my pants. i was too afraid to go to the docter so i didn't. ofcourse i stopped using roids, and after about a month it was completly gone. i'm telling you this, because i don't want you to worry. but you still go to a doc. i dodged a bullet but you might not be so lucky. hope you get better bro.