BTW, my husband is a type 2 with an A1C of 6.5% and a vegetarian.
@Walking Girl is a vegetarian and a type 2 and should be able to help.
@LooperCat might also be able to give you some suggestions
Hi!
First because your diet was so healthy to start and your BMI is so low. You need to keep in mind you could be a type 1/LADA. Type 1/LADA is a slower progressing form of type 1 and harder to diagnose because you still make insulin for a while.
I was a vegan and when my numbers started to fluctuate they kept telling me I was a type 2 without ever bothering to test me. It wasn't until I switched doctors that I was tested and properly diagnosed. So if things don't make sense, you could be a misdiagnosed type 1/LADA. I'm not saying you are, just keep it in mind. My fasting levels kept slowly creeping up and even a salad ended up sending me over 200.
Exercise is really important as it helps force the cells to use glucose, losing weight really helped my husband but it sounds like you aren't overweight at all. As a vegan hopefully that meant you weren't eating a lot of junk, but if you were you have to clean up your diet and get rid of soda, cookies, cake, candy type thing.
I am a type 1, but my husband eats a lot of what I eat, although he eats more protein in he loves the fake meats out now. Some vegans don't like them but they are an excellent source of protein and no carbs usually. Tofu falls into that category too.
Commonly a lunch consists for me a huge bowl of veggies (I use frozen it's just easier) tofu, seitan or tempeh mixed in. You can garnish it with braggs aminos, nutritional yeast, lemon, cashews or other nuts or I have some sauces or flavored seitan I also use on them. Low carb and healthy, a large bowl is about 20 carbs.
Mastering diabetes is a vegan program, although strict that allows high carbs low fats to control blood glucose levels
They have some free information. scroll quite a ways down for the food eating list
https://www.masteringdiabetes.org/reverse-insulin-resistance-presentation/
https://www.masteringdiabetes.org/recipe/
Other low carb vegan
https://lowcarb-vegan.net/
https://www.staceyhomemaker.com/low-carb-vegan-recipes/
https://lowcarbyum.com/category/special-diet/vegan/
https://www.onegreenplanet.org/vegan-food/weekly-meal-plan-the-low-carb-vegan-menu/
https://www.ruled.me/comprehensive-guide-vegan-ketogenic-diet/
https://www.dietdoctor.com/low-carb/keto/vegetarian