Yesterday i went swimming for the first time [blush] i know at the grand old age of 23 i still can't swim [blush][blush] but when i was swimming i think i got a little carried away with the kicking of the legs, and the tendon (or whatever it is) behind my knee popped [shock] i left it for a while and tried again, but the same thing happened. This morning i woke up after a very uncomfortable night and the pain is awful [sad] i can't bend my knee, although walking on it isn't too bad. When i do bend it for example walking down the stairs it makes a strange grinding sound?????? Does anyone know anything about this? Should i go and see someone or am i just being silly, and have simply overexerted myself? greatful for any advice [smile]