i have had it and was ill for months. THe initial diagnosis came when i got out of hours doctors to visit and he called an ambulance immediately, and was rushed to hospital. He diagnosed pancreatitis, and the hospital eventually found me a bed. I had to wait to have the op to take out the gall bladder because i caught an infection whilst in hospital, but once done, the pain really kicked in, i had key hole surgery and stayed for 7 days in hospital. I was told by a nurse to move and stand shortly after the op, which was bloody painful.
afterwards when discharged from hospital i spent many many weeks recuperating, couldn't get shopping, or go out. avoided alcohol and didn't eat much so lost some weight. Not sure what else but the months it took to feel right was miserable. I suggest you follow doctors orders where possible and not to do any heavy lifting at all.
let others help you in any way they can. I was unlucky as live alone, but friends rallied round and helped, and i got on line shopping, which was a god send.