Mine is controlled with diet, the Metformin has a minor effect on levels, which is obviously a help. As a certified old fart now, my prescriptions are free, but i always had a prepayment certificate before.
Everything is currently running smoothly, but as everyone on here knows, occasionally something comes along to rock the boat. At times like that we deal with the interloper first, and then get back in control.
Having had 2 strokes, and peripheral vascular disease, i see metformin as a good thing for me, i take 2 x 500mg a day, my choice as the doctor was happy with 1, but strangely i suffered the munchies, and raised my dose myself, whilst informing the doctor, this helped me, although it may have been psychological.