Hi, About 5-6 months ago I was out playing with my daughter and boyfriend we were having a water fight, I went to run up the concrete steps to run in our house and slipped, when I slipped I bashed my knee on the edge of the concrete steps and was in a lot of pain. After I finally stood up my knee was making grinding popping sounds and was very hard to walk on it. Now its been months I have no medical so I never went to get it look at. To this day, every time I lightly tap or bump it on anything I fall to the ground in tears.. for example I was just crawling into bed and something triggered the pain and now its hard to walk up and down stairs and I have pain goi threw my leg. I also have a lump on my knee that pops out, I don't have that on my other knee so of course it can't be normal! I just want to know how serious this is? I'm only 23 I don't want to already have knee problems!