Four Years Ago, I Slipped, While Moving, And Went Straight

Four years ago, I slipped, while moving, and went straight down and landed on my Butox. My right lower back seemed to be stoved. I also incurred a groin injury, but because I wasn't old enough for Medicare and had no Medical Insurance, I've had to live with it. It seemed to get better for awhile, but about 4 weeks ago I lifted something and now I can hardly get out of bed or bend over ! Also the Groin injury hurts so bad that it now hurts when I move my right knee or move my right foot. I don't know which doctor to see first... a chiropractor or an Orthopedic doctor ?