Suggest Treatment For Pain Radiating From Stomach To Back While Having Renal Calculus

I han having trouble with pain on my left side of stomach and it radiates to my back. They said I had a renal calculus 2.5mm in diameter. It has been 2 weeks now and it is not going away. They put me on a antibiotic of Cepro ?? and that was just in case my diverticulosis was inflamed again. I also have a fatty liver diffusely hypoattenuating which suggests fatty infiltration ...I need help because this has been going on for over a year now and no one seems to listen that I have a problem and it is not the flu. my email address is YYYY@YYYY