Fasting ideas with non diabetic hypo and blow BP

I am considering doing a fast of some kind to help lower my ALT levels for one of my liver enzymes. It is not too far elevated but is staying around 100-125. I do have an issue with non diabetic hypoglycemia and low blood pressure. My blood Sugar stays around 60-70 when I havent eaten and blood pressure can range 90/50 to 100/x range. 90/50 is fairly routine at the doctors and I do have a blood pressure monitor. Does anyone have similar issues or any ideas about what may work? The blood pressure and blood Sugar are genetic and I am in excellent physical condition.