I tripped, fell, came down very hard on left knee. This knee has history, successful minibus repair in 2009. Now left knee is very swollen, heavy bruising, feels like something moving around inside, funny numbness with sensitivity on outer skin, feels like nerve jumping. I can straighten my leg and bear weight. Fairly constant discomfort. Could I have broken my knee cap or possibly torn the other side of my miniscus? Can t get comfortable, but seeing doctor on Friday