I question it myself sometimes, but i think i would have known by now, no?
I mean about 4 years ago was when i started getting more noticable symptoms ie yeast infection, sleepiness, feeling shaky/weak etc. but as i've started watching what i eat and being more active and taking metformin the symptoms are much less. (although i haven't lost a significant amount of weight).
I just remember being told that my pancreas doesn't work properly, doesn't produce insulin properly, and when i asked what type his exact words were 'we're pretty sure you're type 2'.
Anyway, i'm still unsure and i'm just working with what i can, i've never taken proper care of my body and my weight is always up and down from PCOS, eating disorder (being underweight), and other things. But i've never fainted due to diabetes, only ever feeling shaky or that i'm about to faint. And also the symptoms of t1 and t2 can be similar can't they.