If your HbA1c is coming back normal but you have blood sugars that high, it's more likely to be T1. HbA1c is an average of the last 3 months, so sounds like your symptoms are fast onset. If you get readings over 16/17 and you also have a fruity smell on your breath like pear drops or nail polish remover (acetone) then you could be at risk of ketoacidosis which can be serious and you should go to A&E. Don't want to sound dramatic but it's something to be aware of - otherwise keep pestering your doctors.