Hi Debpre, there is a slow release version of metformin that might be easier on your stomach and other issues allot ask for it if it's causing an issue. I was offered it if I had problems but fortunately I seem to be ok on the regular metformin.
As for weight lose I can't help as I think it's personal fight I don't know what you eat or what your diet is but for me LCHF works I lost 3 stone and feel much healthier and my BS is relatively low.
I am sure some one with greater wisdom will tell you more, I am only 11 months i