Hi (((QuietOnexx))) - sorry you're dealing with this pain. Did you get Xrays after falling down the stairs? That's a significant fall and not surprising you would have pain. Muscles are very intricate and related to each other -one strained muscle can have a domino affect. If you can tolerate some stretching, try this but only after a good warmup - maybe join a yoga class and swimming. Take a hot bath using Epsom Salts and use ibuprofen as long as your doctors says its okay. Hope you feel better soon.