When Does Gallstones Become Serious Enough To Persue Removal. I

When does gallstones become serious enough to persue removal. I frequently get constipation, then, diarrhea, the small amounts of fecal output. I have pain in my right side sometimes and it has a hard place sometimes. Recently I had a MRI of my lumbar area the picked up gallstones and I know I have them, just do not know how bad.