What is going on with my knee
April 19th I tripped and fell onto an old wall underwater while running into the ocean. I landed on my bent knee and had two deep lacerations as a result. Immediately after I couldn’t straighten my leg and once I was able to straighten it I had extreme difficulty bending it again. I could not sustain weight and had no range of motion for several days. The lacerations healed perfectly fine but I had persistent knee pain and limited mobility, deep sharp pain on my distal lateral knee. This bump developed about a week and a half after my fall and it feels like a moderately hard mass, hard with some give. I still have some limited range of motion. I went to the ER and got X-rays and they all came back normal. The hospital did not give me any info outside of ace bandaging it. So I’m coming here because it has not improved and there is obviously something out of the ordinary going on. I stand on my feet for work so this has impacted my day to day significantly. What do you think it is? Any advice?