When I was repeatedly sick from the gallbladder and had an ultrasound done, finding a large stone, my doctor told me that it meant the gallbladder was not working.
I had a very simple outpatient surgery and felt so good the following day, I was cleaning house.

I've never heard of the gallbladder fixing itself. I hope you will consult a doctor to talk more about this. There are serious and even fatal consequenses of gallbladder disease, rupture, etc.