When I Was Around 13 Years Old I Was Doing

When I was around 13 years old I was doing bmx tricks on my bike with a erection that came randomly I moved the wrong way and felt a strange pop in my penis and it went flacid very quickly it was a strange tingling feeling ever since then my penis while flacid will somewhat retract and become stiff
I can still maintin erections fine and everything else is okay just knowing this is not right makes me very uncomftorbal I want it to stop.. I am 16 Now if anyone can help me I would very much appriciate it.. Please give me any tips