It hurts just underneath my
kneecap slightly to the left, also swollen, and a little in the
kneecap itself. The thing is, the pain isn't constant and doesn't always prevent me from doing things. It hurts and stiffens up whilst going downstairs, walking down inclined ground or walking for a period of time. I don't know whether it is worth getting it checked out or not because the pain is only dull, just quite frustrating.