Hi all, I am a newbie I am 51 and quite active,mainly swimming and cycling. however the past month did extra short sprints and a few 21 mile bike rides (3 in the space of 3 wks) to mainly get on a health kick due to a planned 10K run with the surgery staff but slide off and return to it with avengance. So quite an erratic pattern to exercise. My knee has been playing up on and off for a good month, I work in a dr's surgery who had a brief look at it and suggested Bakers cyst might be the cause as the back of my knee had swollen and was difficult to stretch out. I went to my own GP who referred me to physio which I went to today. She said looks like it is degenerative wear and tear and to do a few exercises before my nxt visit to assess me again. I feel a bit lost as am usually quite active and she said it's arthritic which I haven't been diagnosed with so feel really down about her guessing at what it may be. I asked what/should I do take glucosamine for future prevention/ help she said some say yes some disagree???? Found her unhelpful.Can anybody recommend anything please? Thanks in advance. Caroline.