need help please

I have a low functioning gallbladder at 15% and no stones. i have constant pain under ribs sometimes in my back. my doctor wants my bladder out. i see my nutrition doctor he has given me standard process suplements that are afea beta food it has beets in it. he says am going to be okay i just need some guidance and my Sugar has been alittle high not pre-diabetic but scary i dont know if its because of the gallballder and liver being congested that it might be rising i eat very good just fruit and veggies and chicken no junk food and exercise every day?