About a year ago I wanted to see what would happen if I prevented ejaculation by squeezing my penis when I was going to ejaculate and prevented it. I was in a ton of pain the rest of the night and could barely get to sleep. I think the pain remained for a little while after as well. I can still orgasm and ejaculate now. Is there any possibility that I could have ruptured or injured any part of my anatomy? I have noticed pains on the left side of my groin area almost daily, even a year after this, but I am unsure if this is related. I have searched the web but haven't found anything on this issue. Any advice would be appreciated.