Question about chronic hives...?

I've had hives everyday for the last four years. I have to get my gall bladder out tomorrow because I have a lot of stones. Is there anyway at all that my gall bladder could be the source of my hives? I've been to two allergists, a dermatologist and an immunologist and no one can tell me why I have hives. I'm sick of having them constantly. Seriously, every single day for the last four years. They just popped up out of nowhere and decided to stay. I can't take it anymore. The only time I didn't have them was during pregnancy. As soon as I delivered, the came right back. Is it at all possible that having my gall bladder out will take care of this? I should add that I have been on every prescription medication (and various combinations) every over the counter medication, steroids too. The steroids worked but you can't stay on them forever. I've had a biopsy done of my hives with no enlightening results. It's not my shampoo, soap, pets, etc. I've been thoroughly checked out.