hey guys. i have alot of problems with my knees, gone threw it 10 yrs, found out just recently its cartlidge damage and rhumatoid arthritis, was told to take arthetec pills twice a day with food its a antiimflammatory pill, first couple shots i throw im ok, but then its like a switch is flipped and im just about on the floor in pain, which sucks cause im only 23, i talked to the proshop and just bought a good pair of shoes, rubber sole on the one and slidder on the other, and changed the slidder to slid a little more, and i bowled 5 games tonight no problem, so try some motrin and better pair shoes might help, i know it helped me, i even slowed up my approch all that seemed to help a ton, thanks