Diabetes, Type 2 - Asking question for my husband who is 52, type 2 diabetes, has been taking Metformin past year or so, feels terrible all the time. He is not overweight, and works heavy equiptment. He is borderline according to his Dr. to go to insulin. I was just informed of something new called byetta, shot injections, that seem to be much better. My husband gets kidney stones, but does not have kidney problems other then that. Any feedback on this byetta would be helpful. He cannot loose his Hazmet Lic. for work, and insulin would cause this. According to a co-working, he said this is different then insulin, and he would not loose any type of certification, or classification of his licsence. All info would be appreciated