David Shore at North Atlanta Endocrinology and Diabetes (NAED). It is a mile or so from
Gwinnett Medical Center. He is pretty straight to
the point and keeps up with you as long as you need to be monitered. Plus, if you aren't feeling well, you can call in and get labs right away. I think she should be seeing an endocrinologist who specializes in this sort of problem and not just a GP.
Good luck, I hope you guys get the help you need.