Just can't win!

Yesterday I was so happy. My husband and I were relaxing in his sister's room with her, my stepdaughter, SIL's friends, working on our computers. SIL and friends head out, and I decide to take my empty hot chocolate thermos downstairs, and pick up my stepdaughter's M&M container to take it down with me. I get two or three steps down the carpeted stairs, when my feet go flying out from under me. I proceeded to fly down the stairs on my butt all the way to the bottom, the thermos and M&M container went flying, and I spent the rest of the night in tears. It still hurts to move around, but my arm and wrists stopped hurting within an hour. My poor stepdaughter felt so bad, she thought it was her fault that I fell down the stairs because she didn't take her candy container down herself. So I spent today limping and moaning and groaning in pain every time I have moved, but I am a bit mobile - it is the getting up and down itself that is painful. Once I am up, I am good to go as long as I move slowly. I hope this stops hurting soon... I like being able to sit normally!