Hi Gem
Welcome to the site.
With the readings you are explaining and especially after not eating for four hours, i think the chance of (if) the doctor will say you have diabetes. But please don't despair come back to us after you get the results and i am sure we can help to quide you.
Just remember we are not doctors, we all go by our own experiences.
I am a Type 1 and have been for 36yrs and i am now 42yrs.
Please keep in touch and let us know what happens.
Take care
Tracey