well like a week and a half ago, i was getting my back adjusted by a friend.. he stood behind me i crossed my arms and he would pick me up and allow my back to extend and "pop"... done it several times with success.. this time i felt a small like pop in my rib area.. thought nothing of it at the time, cause it really didnt hurt... several days later it was feeling painful when i would bend down, or lift something heavy.. now its 10 days later and it is getting more painful... especially tonite.. should i emergency room it.. or wait till monday...