ds has been saying this week that his left knee feels like its 'giving way' when hes running round the field at the start of a games lesson, it hurts like mad then eases off. They don't appear to do any kind of warm up before running and then have to run in football boots. Is ir worth asking our gp? Games teacher tells him off for whinging when he has to stop because of the pain and makes him run round again!! Hes not particularly sporty, but its upsetting him - can the gp do anything? He did fall over earlier in the week (on same enforced run) but can't remember anything else