Hello! About a month ago i fell on my right outer thigh and had a big bruise and it was hard underneath the skin. The bruise went away but the hardness is there. When I lay on my back my thigh starts tingling. I ve fallen asleep before and wake up to pain on the thigh because it has been tingling for too long. After i move around, the pain goes away but im left with numbness to the area only.and a bit of swelling. What could it be?