hi just wondering if anyone has any advice my active healthy 6 year old son has said he knee hurts since last Sunday when he presses it the front (pattela) after a few days its not hurting during the day but on a night when hes settling down he says it hurts again the kalpol is working and hot water bottle but I'm so worried. I've saw 3 different doctors over a week that have examined him and dont have a concern unless he shows other symptoms. Dr google is frightening me. :(