Hi and welcome. You've had a lot of good advice so far. Your GP will have guessed T2 rather than T1 as most do that. If you have some excess weight then he/she is probably correct, but if you are normal weight and/or have lost weight recently without trying then you are more likely to be T1 (LADA). I've been thru that, so do ask for the two tests for T1 if you fit the slim category. Any BS finger-prick reading that regularly goes into the 20s needs very close monitoring in case you are going into DKA. If you feel unwell or the BS keeps going up then go to A&E. Normally you should test around 2 hours after a meal. The 3 month wait after first diagnosis is normal. The Sukkarto SR (generic is Metformin SR) is a very safe drug and will help a bit but the low-carb diet will help the most.