I'm a 20 year old female and about 2 months ago I fell and hit my knee pretty hard at work. At the time it only caused mild bruising, and I still have full functionality of the leg. However, every time I slightly bump my knee against something there's a sharp stabbing pain throughout my leg. I think can feel a very, very slight dent in the knee and it hurts when I press down on the spesific spot and leaves my knee aching for a few minutes before the pain passes again. This doesn't hinder my life since it doesn't hurt to move or put weight on the leg. Other than being annoyingly painful when I bump into stuff, it doesn't bother me. Is this something I should worry about? Should I get it checked out to be on the safe side? Is there a risk that it'll turn worse? Thanks.