Boo is 3 weeks into being diagnosed as a diabetic. The twice daily insulin shot is stressing both of us out. He is becoming more and more distrustful of me. I come towards him to pet him, and he acts like I'm about to cause him pain, so he moves away from me. It's very disheartening and it makes me very sad to hurt him. There has to be a better way to control this disease on dogs. Can anyone give me advice?