Hey so my family usually have bad knees and my knee but my knee lately doesnt hurt but i had felt like when i walk that my knee was gonna break or something it hurt then. But i didnt have no swelling or redness. But then a couple of days afterward it stopped hurting. I can walk but then i discovered when i keep my right knee straight and bend my left knee it starts to shake real bad and almost feels like my knee is becoming very weak. So could u tell me what is wrong with my knee. Or any suggestions. My parents say cuz i need to run or whatever and im really not that overweight at all. I can run and walk. My ankles dont hurt but my knee hurt simply when i was just walking. And sometimes it stopped but then it started to hurt again. So please help me. I dont do athletics or really run. So i dont think its runners knee. Please help me!