Been there, had the keyhole surgery, this was after a couple of years of regular all night vomiting sessions, no one could diagnose it until I went to get test results, my enormal doc was on holiday and his stand in asked me to go thru the history. Before I'd finished he said 'gall bladder' and sent me for ultrasound, there they were..3 enormous stones just hanging round waiting to blockbup the neck of the bladder again ( prob after pizza or Chinese or anything that needs digesting properly)
However getting it sorted was another matter. Because I was in the public health system ( not as bad as the US but still not great) I was put on a waiting list of about a year. I ended up in emergency a couple of years times puking blood and that got me moved up the list real quick.
The only real after affect is that whilst I can drink or eat whatever I like, I can't do both at the same time. If I've been drinking , as soon as I eat something I lose all desire or ability to drink anymore. So most times at bbq's or parties I don't bother with food until just before going home time.
It has changed since just after the op though, back then I'd drink , eat something and fall asleep in my chair ( old fart syndrome perhaps).
It all has to do with liver function, the gall bladder used to store super strong digestive juices that could be called upon as soon as you dump a pizza/steak/greasy Asian meal or whatever down your throat and those juices would get to work digesting than asap, leaving the liver ( a closely related friend of the gall bladder) to deal with the beer intake. However with no gall bladder the liver has to do both at the same time and the body either shuts down to allow time and energy to be thus expended or stops you from making matters worse by eating or drinking more.
Incidentally, the gall bladder resides about half way along the inner edge of your right rib cage, should it be causing extreme pain, it is possible to grab hold of it and squeeze the hell out of it, this will force the bile past the stones... problem solved.
Anyway, get it out, if you don't it will either go septic and kill you with blood poisoning or rupture and kill you with blood poisoning