Prediabetes

I've been pre diabetic for the last several years. I recently had a fasting glucose test and it showed my blood sugar was 142.. which is basically the diabetic range, I redid the test the next week and I dropped back down to 118 the prediabetic range. I've never spiked to the diabetic range until that day. Could lack of sleep and stress maybe have spiked the glucose that high?

Also I asked my doc if there were any meds I can be put on for prevention sakes, and he said no because then he said I would have to check my blood sugar and treat myself as if I was a diabetic. Is this true or are there any prediabetics out there that are on meds? Although I do realize exercise and dietary changes are the most beneficial. Looking forward to hearing about your stories. 

Hi,were you sick at the time,that can temporarily raise your blood sugar.

Actually Metformin is a drug commonly used for pre-diabetes and diabetes and the best thing about it is that it doens not drop your blood sugar too low and there is usually no need to check level