Hi Tonio from another person wrongly diagnosed Type 2 cos of my age. I was 42 and slim with an HBa1c of 11.3 which I think is 100 ish in new money. Took 9 months of being on the wrong meds and loosing a stone and a half before ending up in casualty with ketones and a new diagnosis.
There are plentY of slim Type 2s out there, but it is worth getting tests done asap just in case.
Best of luck with your appointment on Wednesday