Hi ya'll Recently I've been getting a bit worried. Due to university I had decided to apply for the reserves until I finished. All seemed fine but about 2 days after I put my application in for the reserves I was walking normally and felt a really really really REAAALLY sharp pain in my knee cap but it only hurt for about 6 seconds and then subsided. After that day, underneath my knee cap has been hurting quite a bit, but only when my leg is bent e.g when I'm sat down and I place my legs a little bit under my chair or when I go to kneel down. It is only in my left knee cap. I have got myself fit enough to pass the pjft easily but this sudden problem is scaring me from carrying on my running even though it doesn't hurt at all when I run just in case I am damaging myself even more on a minor level. When the pain starts when I have had my legs bent the pain starts getting more and more severe and I can feel the pain getting worse when I press around my knee cap, but when my leg is extended and the pain is dispersed I can not longer feel the pain when I feel around my knee cap with my hands. This has been ongoing for around a week and a half. I am worried to go to the doctor unless it is a ligament or tendon issue as I know any problems concerning them is a potential bar to entry and that would mean my whole future prospects are ruined. I will eventually go, I just want to hear if anyone has dealt with something similar and if they went to the doctor or just rested it? Also, my knee cap also clicks when I straighten out my leg even though the other one doesn't.