Hi
@JohnnyRam. Same sort of thing with me as quite a few on here. Initially diagnosed as T2 at age 42 after reporting symptoms of continual thirst, peeing all the time, feeling constantly tired and having sores on my shins that took ages to heal, then followed a GTT which showed I was diabetic and started on Metformin which did absolutely nothing to bring down my high BGs (thankfully my GP at the time was in favour of testing BGs even though just on Metformin).
It did take 5 years to be put on insulin and taken off Metformin and that did the trick getting everything under control. I did have a GAD test at that time, but that was inconclusive, probably due to being so long after initial presentation of symptoms and diagnosis. So I was left to it on insulin alone and just had tuition from the DSN at the hospital on carb counting for basal-bolus.
Fast forward 12 years to age 62 and after a referral from my current GP to the diabetes clinic at my local hospital as they didn’t have the skills to handle advice on insulin regimes, I have now had my diagnosis changed to T1 and put on the Libre (a real game changer). I must have been T1 all along, but at the time it seemed that anyone presenting with diabetes symptoms in middle age was categorised as being T2. The deciding factor this time was how I react to carbs, insulin and the amount of insulin needed to maintain in range BGs. I have been more or less using the same amount of basal and bolus all along, so that gives me some conviction it was really T1 from the start. Nevertheless it was a bit of a shock to be told that even though I always wondered as I never really felt I “belonged” in the T2 diagnosis.
It is hard not knowing definitively and even with this recent diagnosis I still ponder and wonder. Did the chickenpox I have just before diabetes diagnosis trigger it, the virus attacking the beta cells? I will never know. But what I do know is that treating my symptoms/condition as T1 works and I can manage my BG levels with a basal bolus insulin regime. My DSN told me that they are seeing people of all ages, including 60s and older, being newly diagnosed as T1, whether that be LADA or the result of a virus attacking the pancreas beta cells.
I hope you get a definitive diagnosis soon and get the right treatment plan for you. It sounds like you have a switched on team helping you, so I’m sure things will work out for you. There are also loads of people on here with heaps of experience who can offer their help and ideas.