i took my 4th shot on friday.. (sunday right now.. when i took my shot i accidentally let the needle move around a little bit..then i aspirated, bubbles came through like they're supposed to , no blood, so far so good... then when i pulled the needle out i had a little blood in the bottom of the syringe. i think what happened is i passed through a vein on the way in, and when i pulled out thats when the blood come through.. i got kinda tired like 15-20 minutes after the shot and fell asleep for about an hour, went to gym after that and felt fine... woke up saturday morning and noticed how swollen and abnormally sore my leg was.. today, same story.. it swollen on the outside of my leg, about a 5x5 section, and also red where swollen.. hurts to walk pretty good and sort of worried about it... anyone know what happened, or have the same thing happen to them before?