2 Years Ago From Last Month I Had His Really

2 years ago from last month I had his really bad bow to the shin during a soccer game. I was in immediate shock and should only think about the pain. when I walked off the field I was very dazed and could only think about what had happened. When I took my shin guard off I saw a bump rising rapidly. it was turning a dark shade very quickly. I couldn't walk on it and had to be carried to the car. when I returned home I noticed that not only did the bruise travel down it also traveled down. by the time I went to sleep it had gone all the way from my knew down to my foot and wrapped around my ankle and up half way up the other side of my leg. I had to sit out for the rest of the season because no pressure could be applied, including walking. After a month I want and got an x ray but they said its VERY swollen and they are pretty sure it wasn't broken. Time passed and after about a year most of the color went away and I could comfortably walk on it most of the time. now 2 years later I went back and got another x ray and the doctors seemed confused and ordered another x ray, again, nothing came of it. I still get sharp pains running down my leg where it was bruised and its still very tender to the touch. does anyone know what is wrong with me?