Also have pain in the interior of my knee. Btw, this is my right side. Swollen on the lower part of my knee and pain in the upper part of my knee?

Knee pain,swelling. Causes of these knee symptoms, if not from an acute injury, include arthritis,prepatellar tendonitis, cartilage or ligament damage, or chodromalacia from overuse such as running. An orthopedic specialist is best to consult for diagnosis and treatment.