I fell on my left knee and side 2 weeks ago. My balance has been off lately. I now have pain in my lower back, and my hips. Sometimes my legs ache, and it hurts to walk. I took the muscle relaxant prescribed by the MD. Had to stop because I became too lethargic. Just started going to a chiropractor. Also, am having an upper endoscopy because sometimes I feel that food gets caught in my throat. A drink of water usually solves this problem.? Could something else other than the fall cause these issues.?