What Could Have Happened In The Knee Which Turned Blue After A Fall?

I fell thru an attic floor on 12/6,my L knee turned blue instantly. The bruising traveled from knee to ankle. Alot of pain and swelling. A week or so later, I had a blood pool in the bottom of my foot. I was advised may be a blood clot, went to ER. Had labs,doppler and xrays. All negative. The swelling is still very painful. There is a large area on the R side of the knee that, I was told today by an ortho. Dr. that it is a hemotoma, that could take several weeks or even months to begin to heal. This happened 12/6 but the knee pain is worsing. Dr. said to just suck it up, even though it is painful and limits the bending of my knee. I don t know what to think of this, I have never seen this Dr. before. So I am not too familiar with his demenor yet, but I felt like he just blew me off. And of course was told needed to go back in 2 weeks. (Why if I am gonna have this up to several months?)