You sure you dont have acid reflux? I can get MEAN attacks due to acid reflux. Pain can be immense and last for hours. Eating too much at one time, eating too late, high-fat foods, stress, etc all can be culprits and exhibit some of the same symptoms as a gallbladder attack.
Oh, the people I know who had gallbladders out did great afterwards. Always a danger with surgeries no matter what, but gallbladder is on the milder side of invasive surgeries IMHO.