Worse pain ever was my gall attacks I feel for you. I never really had any signs bar the actual attacks. I was in private and due to have them out. The week before I got a phone call to say my private health insurance didn't cover it. I was in tears and the day of the meant to be op I had another attack. I actually went months without an attack while on the public waiting list and lost 18kgs as I was eating no fat.
Until one day they started again I was having attacks daily, got so bad drinking only water set off an attack. My last attack was unbearable I couldn't even move. Went to hospital and was admitted. My liver function was bad I was yellow (I had a stone blocked in my duct) had it removed. I had to have a follow up op as when they removed my gall they had to put a stent in and I was told 95% or something like that remove themself but of course mine didn't.
I have been fine ever since (besides putting all the weight back on
but have lost 12kg again now). My advise is everytime you have an arrack go to hospital so you can be pushed up that waiting list. I didn't as it was an hour away (going to my home hospital did nothing) and the thought of driving in that much pain was unthinkable. But if I did I was told I would have had it out sooner.
I also found drinking apple cider vinegar stopped the attacks from going on hours and hours. It use to make me vomit but I would have done anything to stop the pain. I searched the net for remediies, can't think of some of the others sorry.