Hi This has only happened recently and it started when I got to 7 miles - my knee started to feel sore on the outside of my knee. I stopped and it gradually got sore onwards during the day. I took ibuprofen and iced and rested for a few days. I felt the soreness/ tightness on the outside as I bent my leg to walk and goin upstairs. I massaged the area and it eased off. I then ran again and got to 3 miles before it flared up again. I walked then continued then got a sharp pain so I stopped and walked home. Then i did the usual icing and massage and resting again. I went out for a run today after a week of just swimming and its started again. Any ideas?