Cant we live without medications?

>I diagnose 3 months ago...my Ac1 was 8.2, BS 160 I am on diet and excercise+ metformin 500 mg once daily my daily readings are fasting BS=107-115mg and after dinner 2 hours=130-140 mg...I will check my Ac1 within 2 weeks<

Considering your 8.2 A1c at diagnosis, it looks like your doctor's current treatment plan for you is good one, especially in light of your much-improved numbers. A lot (maybe most) type 2 diabetics who need medications take metformin; it can be a really big help to getting glucose levels regulated and keeping them that way. With the addition of diet modifications and exercise, and an eye to losing any excess weight you might have, in time you might find yourself at a place where the metformin can be discontinued. Or not. No one can say, not at this point. Plenty of people are very well controlled with just diet and exercise, and some get there but then eventually need meds down the road. Just stay close to your doctor, with check ups and blood work done at least every six months, and do your best to adhere to his recommendations, and you should do fine.