I fell a few weeks ago and landed in the hurlers stretch position. I had significant bruising that went away and I now have very little bruising now. 2 days ago my knee was popping while I was just putting my feet into a pool and swinging them back and forth. Today it is swollen and it hurts to fully extend or bend my knee.
You got injured your knee which may be either bony or ligament injury. If you are able to bear weight than it may be ligament otherwise it may be a bony injury. Ice packs and anti-inflammatory medicines helps you to reduce swelling and pain. Get an X-ray done and consult local orthopaedician for further advice. Thanks