It could possibly be but it would be best to discuss the issue with your Dr. Before I was diagnosed I used to have episodes where I would be completely out for about 4 hours and I couldnt be woken up but your BS would generally be 30+ or more .
High greener. Yes I also started getting really tired all the time when I got diabetes. It's quite a common symptom.
One other thing to be mindful of is sleep apnea. Seeing as T2 diabetes (and pre diabetes) are quite often associated with carrying a bit of excess weight, sleep apnea of some form is not uncommon either.