I have had knee pain for years. When I was 23 and in the military, the doctors said my knee caps had fallen. I have taken ibuprophen over the years which made the pain manageable. Now, at 46 my kness hurt all the time. They have also began to pop. My doctor suggested PT, but it is really not in my budget, as I have been out of work and without insurance. Is there anything I can do to eliminate the pain?