Hi, I ve been having severe knee pain, have no injuries of any kind. Started taking Glucosamine 2000mg & Chondroitin 1200mg per day. This has taken away the tightness but I still have pain behind the knee when walking. Excessive walking causes me to limp. Also, severe pain going across the top of my foot.
Hello, The answer really depends on how old you are. In a young person it may be what is called Patellofemoral pain - this is benign and usually improves with time.  If you are older than X-rays might be needed to check for arthritis. Best wishes, Chat Doctor.