Am I diabetic?

Sounds to me as if you are diabetic type 2. It also sounds to me as if your local medical practice is a ***?!**!!!.
So, you are going to have to find out about things for yourself. Do have a read around this web site and forum and then come back and ask as many questions as you like.
The key thing is to get your blood sugars down. Metformin will not do this for you, you will have to change your diet and the diet, which is generally regarded as most successful, is Low Carb. In other words, cutting out most bread, pasta, pastry , potatoes, cereals and rice as well as sugar and sugary foods and drinks. YOu also need to test your own blood sugars. Once every six months is next to useless. You will need to buy a meter. There's lot's of info here about this and lots of other people will be along with advice.
Sally

It sounds as if those are HBA1c figures, though I can't see why your test would be 'fasting' in that case. Perhaps they did other tests.

Assuming it was HBA1c, I was 86 and I refused Metformin and within 12 weeks of diet and exercise, I was at 48. With more weight loss, a few months later I was at 36. Eating healthier foods, increased physical activity and weight loss all contribute greatly. It is not hype. It works for many people.

Your experience is sadly common. This is from Professor Roy Taylor, a researcher into diabetes, writing in the journal, Practical Diabetes:

"It must be recorded that many individuals expressed frustration at the routine manner in which their doctor, nurse or dietitian regarded the diagnosis of type 2 diabetes. This conflicted with the cataclysmic blow which they personally felt. They were told that the diagnosis was clear and therefore the guidelines will be rolled out. Lose some weight and take this metformin. Get used to it."

Have a look at the Newcastle University web site on diabetes:

http://www.ncl.ac.uk/magres/research/diabetes/reversal.htm