Also, go to health store and pick up pH test strips. Check for acidosis.
Do you have her on sucralose or aspterame? Both are deadly and causes severe problems. If so, change to stevia. Also Alpha Lipoic Acid, banaba leaf, and cinnamon (bought at health store) all help regulate sugar. Is she on a food-based vitamin/mineral?
Was she checked for hPylori? What kind of testing was done at the E. R.?