I have spinal stenosis, herniated disc, digentive disease and chronic arthritis, My problem is that now my knee has been swelling to about the size of my thigh. Plus I have a constant stabbing pain in my lower right side like right above my butt area. It hurts really bad if I lean to the right and it just hurts to walk, the pain is even in my right hip and running down my thigh, please advise.