I hurt my middle toe six months ago and my right knee started to swell. I had x-ray and ultrasound both my knee and foot but my doctor found out nothing. I wasn’t given any medication except advil incase it will hurt but it does not. I sometimes feel some tightening and hears cracking sound everytime I do my exercise but I notice that the sweeling sometimes disappears and sometimes it comes back.My middle toe still hurts everytime I accidentaly banged it and the ball under it is a bit painful but unvearable. I decided to rather have my daily exercise. Any Help?Advice you can give?