17 year old male, around 260 pounds. I recently got my wisdom teeth taken out and took 800mg ibuprofen and a generic of vicaden (hydro something- my mom threw it away as she didn't want it around the house) and cephalexin. I am not for sure that this is related to my problem but I suspect it is. I got the procedure done on Friday and I masturbated normally over the weekend and I think either mon or tues this week I did as well. However last night I tried to masturbate and it hurt too badly and I stopped. I had been off prescription pain killers since Sunday but I took one last night as I was in slight pain, it instantly made me drowsy. The next morning I tried to masturbate again and it hurt but I kept on doing it and eventually I ejaculated and I still got pleasure from ejaculation. When I returned home from school today I tried again and it did not hurt at first but it did start to hurt eventually, I still ejaculated and it was still pleasurable during ejaculation but not leading up to it. The pain is on my shaft, there is no pain in the testicles. There is a slight red color near the end of my shaft, but it has always been like that. It could be a bit redder, but I am really not for sure about it as I could be imagining it. I have NEVER had any sex, none of any sort, not even a hand job so it can't be an STD. The pain is real. Is it a reaction to the pain meds or is it something else? I would like to find this out over the internet as I do not feel comfortable discussing it with my doctor as she is a family friend and is very conservative. My parents are the same way and would not know anything either. Please help. Thank you.