I've had success of treating a 6mm gall bladder stone.
It requires proper case taking and getting your individualized medicine, since there are many medicines for gall stones, including the one you have mentioned.
Next Steps
Next step is to avoid self medication and consult a physician and get your treatment started as soon since symptoms tend to worsen.
Health Tips
You need to restrict your diet immediately and get a proper diet chart prepared with your dietitian or your physician or both.