If you are not in a lot of pain the Doc will probably tell you to wait and see if it settles.Sometimes it can be years before you get another attack and lots of people live quite happily with gallstones.If you need an op the most common treatment is to surgically remove the gallbladder.If possible ask for Laparoscopic surgery it involves less pain and a shorter recovery period than the traditional open surgery and the scar is much smaller.There is Lithotripsy treatment were they use shock wave therapy,the high frequency waves break up the stones then you take salts to dissolve the fragments.If your stone is large it could take months to dissolve so you would possibly need long term treatment.Several of my family myself included have been treated for gallstones and I have seen dozens of operations at work ,everyone has to be treated as an individual and I'm sure the Doc and Surgeon will choose the best treatment for you so good luck !