Hi Hal, I know exactly what you are saying. I myself put a thread up entitled 'struggling to eat'. I am recently diagnosed with T2 and put on Metformin. If you were my husband, I would ask that you don't fuss too much. I am feeling ok, and like your wife my BG is quite stable at the moment. I would guess that I would want you to worry if this became a long term issue, but for now, as long as your wife feels ok, then let her be. As other posters have said, she may need a med change. People here advised me to see my GP for SR Metformin, which I plan to do. Small meals are not the end of the world as long as she is eating something.
Try not to worry, easier said than done I know.