Pre-diabetes or diabetes?

I had my blood sugar checked last year at the regular dr. it was 109 fasting. The dr said it was fine and I didn't have to check my sugar or anything. I then had an ob/gyn appt, and they said I was pre-biabetes. i told them my regular dr said I was fine and they disagreed. I then took it upon myself to buy a glucose meter and pay out of pocket for everything. My dr wouldn't write a script for it. Over that 6 months time, my sugar remained above 100 at fasting and about 160 2 hours after eating. I changed my diet and stopped eating starches and breads,etc. The stripts got too expensive to pay for out of pocket, so I had to stop checking it. I just had a yearly physical with blood work again, with a diiferent family dr., and they called me to tell me my blood sugar was high at fasting , and they would go over it with me when I go back in 2 weeks. My question is my blood sugar has remained on the high side for a year and a half now, even wih diet changes, and excersise. I'm not overweight, but have gained 25 lbs in 6 months time, and can't lose it. I am 5'4 and weight 145. does this mean that it will turn into type 2 diabetes? or would it be clified as diabetes already? Would they put me on medication for it? Not really sure about anything with the other 2 drs disagreeing on something so serious. Hopeing the new family doc will help out on this.