Hi R, Is your masturbating excessive, what we would over masturbating say 3+ times a day, over masturbating can lead to lots of problems, and if I'm right your problems are one of them, I think its about time for you to take an 8 week break from masturbating, give your body a break and a chance to reboot and start the healing process, see how it goes, when your have done the 8 weeks, come back and tell me how you are.
Good Luck
Hi Rofh, you seem stressed out. Sounds like time to have an overall checkup at the doctors office. Masterbating can make your muscles and joints feel pain. The orgasim tenses up the whole body and then you relax. Not sure about the sores but maybe your doing it to hard and to oftern.
Go have a checkup to confirm your in good health.