I really do have friends that are completely symptom free. I would not lie about that, and definetely I would not even consider having surgery if everyone i knew had their health completely messed up by having their GB out. There is positive and negative to everything and you have to consider all the possibilities. Flushes do not work for everyone and neither does surgery. It's a risk either way.
Having your GB out may not be the reason for all those other health problems you've mentioned above. There may be other health issues besides that at hand. Anyone could come down with any of those symptoms even if they do have their GB. If your liver is healthy it should still function normally after surgery. I will continue to take good care of my body after I have surgery the same way I do now.