wow, you really need to get that checked out, maybe when you had your gallbladder removed they did something ( wrong) like a tear or something, my cousin had a tear from a surgery also... maybe a 2nd opinion!!
I don't have any answers for you unfortunately. I would suggest calling the general surgeon who did your cholecystectomy and see if you can make a follow up appointment. I believe you are covered 90 days post op so you shouldn't owe anything to see him. Please make sure that is the case before you see him. I hope they can give you some answers or point you in the right direction. Best wishes to you!