pain in the...

Night shift seems to be working well for me again so far. Last week I managed to tweek my back stepping out of the back of an ambulance only an hour into my 12 hour shift and spent the last 11 hours in pain, not even able to stand up straight, thank goodness we have "triage" time, I managed to get onr of the other guys to have his time so that I spent the last 8 hours of my shift trying to find the least painful way to sit in a chair. I sucked u p my pride and had the ER doc check me out after my shift and after some x rays was told it appears to be a pulled muscle and sciatica. I figured I didnt have to work again for 5 days, should be better by then. I was wrong. Its been 5 days and I am back at work, sitting my whole 12 hours in triage because I still can not stand up straight. I spent my days off taking pain pills and laying flat on my back on a heating pad sleeping on and off. I dont know what to do next....