Alright so I started my first cycle last Thursday I'm running test e only for 10 weeks. Anyway I pinned for the first time last Thursday in my right glute really had no issues went in fine and everything no pain at all, however the day after and up to today(pretty much subsided at this point) I've had some pretty rough tailbone/lower back pain. My girlfriend said it looked a little bit swollen and possibly bruised. All I could find was that I could have possibly hit the sciatic nerve but I think I would've known at the time I pinned if I had hit it, anybody ever experienced this or have any idea what may have caused it?