Need Some Help, Soreness In Port Area??/

i was banded july 27,2011.i lost about 20lbs,and unfortunately,i put it all back on,i became hypoglycemic,which really scares me.I am on my 3rd fill,and have no problems with eating anything.This last week i have been having soreness,on my left side around the band,and when i rub the area,it feels kind of numb?i can not sleep on my right side,because the left side starts to hurt,but if i lay on my back or left side it is fine.The only thing i can think of is,last week i lifted about a 50lb bag of wood shavings,and i pulled something.could i have done something seriously wrong?I can not go back to see my lap band Dr. because,i have a co pay now,and i can not afford it.Any advice,on what could have happened.