I had an ultrasound an discovered i have a 3mm polyp in my gall bladder and i have ocassional side pains?

Gallbladder polyp: Generally, most polyps can be followed by ultrasounds every 6 months or so. If they increase in size, it is advisable to discuss your findings with a surgeon.

Unlikely related: Gallbladder polyps are often found incidently on imaging studies, and as such are typically painless. Seldom does the gallbladder cause pain on both sides of the abdomen as you seem to describe. Gallbladder symptoms more typically locate to the right upper quadrant and epigastrium with radiation to the right scapula. See your doctor about your symptoms please.

Don't worry: Polyps are very common and rarely cause symptoms. Sometimes they are a manifestation of a disorder called adenomyomatosis. This also usually does not cause any symptoms. Some physicians advise to remove them if they are 5 mm or more, due the the very small increased risk of cancer. In any event, they are unrelated to your side pains.

Why the ultrasound?: If you had the ultrasound to evaluate your side pains, maybe your doctor is worried that it could be due to your gallbladder. If that is the case, you may benefit from gallbladder removal.