Dr,I was diagnosed type 2 with A1C 6.5 last July n did not take any medicine. I started diet n excercise n 2 months ago A1C was 6.0.should I take medicine?my goal is to bring it down to 5.7 or below.im 53 years old n physically work about 12 hrs a day for 5 days a week. Pls advice Thanks