Two Weeks Ago I Was Involved In A Horse Riding

Question: two weeks ago I was involved in a horse riding accident. Actually two accidents the same day. (Not a good day) 1rst i was bucked off a friends horse. Landed in soft dirt on my right side. knocked the wind out of me. painful to take breaths for a little while. Two hours later during a obstacle challenge I was walking my horse up a narrow hill to cross a bridge. She refused to cross the bridge and started backing up fast.. Her hind leg slipped of the side of the hill and she fell on my lower right leg with her legs headed up hill. She rocked back and forth on my leg 3-4 times trying to get off of me. I was able to walk away however I felt pain behind my knee. My jeans were not torn. I was competing out of town and was taken to a local urgent care. The pain behind my knee was a huge gash that took 25+ stitches to sew up. The urgent care thinks it was the pressure of my horses weight that broke the skin be hind my knee. I think so also since there were no rocks on the trail and my jeans were not torn. They told me to follow up with my dr. My dr. has drawn fluid out of my calf 5 times. The last time was yesterday. I went to see him to have the stitches removed. While waiting the nurse noticed fluid dripping from my leg. It was coming out of the wound. He drew out 200 cc's of fluid after removing the stiches. The fluid looks like blood but a little lighter in color. He wrapped my leg and taped guaze on the wound. Said if the wound started oozing fluid to call him. I slept good last night. Nothing oozing from the wound. But the wrap is feeling tight and my foot and calf very swollen again. Its been 2 weeks today since the accident. Why is my calf still filling with fluid. also my right side is still very tended from and back to front of my side. Is that where my kidneys are located? very concerned.

I am quite positively there is internal injury causing the fluid build up. My horse weighs 1000 lb's. She rocked back and forth in my leg 3 - 4 times. Like I said I have had fluid drawn 5 times. Averaging approximately 85 cc's each time. I dont think there is an infection as the fluid withdrawn does not smell bad. Something inside is continuing to bleed now for two weeks. Is wrapping my leg suppose to stop the bleeding? How long can an internal injuring continue to bleed before permanent damage occurs.