5 weeks ago I landed on my knee on hard floor at pretty high impact. I took it easy for a few weeks and the pain got better but I am unable to kneel on that knee due to the pain. This is the main problem. Otherwise, I can walk, run or bike with no pain but my knee may ache off and on the next day so I have hardly been exercising to prevent this. I have previously had ACL and meniscus injury in the past on that same knee. Could this just be a deep bruise or is it something I should have looked into further? If I apply pressure at the top of my knee there is slight pain but very tolerable. The intolerable pain is trying to kneel or sit on knees. There is no unusual swelling and I visibly can't see anything different between my knees. THANK YOU!!