Knee pain, workout is on hold

Well, I've been working out a lot and I've noticed that I have severe knee pain, especially when I run or even walk. I have foot and ankle problems in my right foot. I can' t even run in a straight line unless I'm looking at my feet and really thinking about foot placement.( I had a bad fracture and some tendons ripped that never healed right) I figured I was maybe overdoing it so I gave myself a 4 day break and it didn't help at all. I also remember that I could never do lunges. It always hurt. And that was when I was in wonderful shape. So I think back to the doctor I go. It looks like I probably have runners knee which I hope I don't. I really want to run. I'm hoping the doctor can give me some exercises and suggestions, maybe even insoles, to help with my issues.