Went bowling and after a game and throwing the ball a weird way i felt a sharp pain in knee now every time i bend down i get a sharp pain any ideas ?

Knee strain: The body positions and leg motions in bowling put a slightly different stress on the knee joint then does walking. You may have strained the knee muscles, ligaments, or cartilage. Try to rest for a week, tryAlleve if you can tolerate it. Swelling of the knee joint may indicate a more significant level of injury. If it pops or locks, you should see your doctor.