i was doing deadlifts on thursday when, on my 4th rep i felt something in my back on the right side near the bottom of my shoulder blade near the top of the lift. i put the weight down and that was the last thing i did that day because it hurt. later that night and the next morning it hurt like a *****. i coulden't take a deep breath because it hurt so much. now (tuesday) it is starting to feel better but it still hurts when i bend to the left side(like when doing an oblique crunch) and a little bit when i bend over foreward. does anyone know what muscle i could have damaged? was it a muscle? how long should i wait before doing deadlifts again? if this helps it feels like it is hurt around the teres major or minor. thanks in advance