Evening, every time i kneel down i get a sharp pain in my left knee, like i've knelt on a piece of glass. i'm 36 & a mother of 2. i work out 5 times ?

Bursa, nerve, etc.: There is a bursa on the front of the knee called the prepatellar bursa that can become very inflamed and sensitive, especially when keeling. There are also small nerves on the front of the knee that can become inflamed. Finally, the patellar tendon, infrapatellar fat pad and cartilage behind the patella can also be sources of pain. Time to see an orthopedic doc if this is not resolving.