Hey everyone I'm 25 years old I sell mattresses and we do some furniture beds. I also deluver and set up customers stuff. A customer ordered a bed from a company called fireside lodge which produces furniture beds made from old tobbaco barnwood. The headboard for this particular bed weighefd a little over 300 lbs. My coworker and I delivered the bed and set it up. Had to take it up some stairs. After we got done I noticed a feeling of immense pressure on the lower right area of my back. It got worse and started inhibiting my ability to walk. Its been 3 days now and the pain is still there. Certain positions don't hurt too bad like when I get in the standing position I can walk albeit slowly but getting up and down or turning while laying down is excruciating. Also while walking if I hit a certain angle I lose control of my right leg and it nearly brings me to the ground. I have to return to work tomorrow and don't know what to do or how long this could last. Anyone ever experienced this or have suggestions? Thanks in advance.