@royal1616
Hey buddy you don't need to worry about the gall bladder stone .When i was getting started with my flight training i was diagnosed with the same problem so i got it operated by laproscopy and after couple of months cleared my DGCA class-1 medical.Its been almost four years now and there has been no problems in any of my medical renewals.I would advise you to get it operated and get rid of the problem.
Regards