my feet went out from under me on the 3 rd step from the bottom of my stairs. I fell on the left mid side of my back. Couldn't move for a few minutes. Hurt bad but didn't get worried till the next day; began hurting to catch a deep breath & verynsensitive to touch or even lay down. Went to local urgent care, told the doctor what happened( didn't even touch the area), he ordered a CT scan with/without iv contrast. Results were negative. It's now day 4 and I have NO bruising and I am in GREAT pain. Dr. gave me Norco Vicodin & it is not helping. I'm worried. Any suggestions?