I also take the Metformin 2x1000 and have to inject every day with insulin as well. Due to a severe back injury,most forms of exercise are impossible. I'm "pretty good" about what I eat and my glucose level is okay for the most part. The problem with diabetes is that it gets progressively worse,thus the more you have to do to combat it. If you are doing your part and your A1C continues to be 8.5 or above,TAKE the insulin! It ain't that bad. The biggest drawback is that it's EXPENSIVE and there ain't no such thing as generic insulin.
f.t.