Hi, Rachel
What an awful experience, and now diabetes on top.
Fresh meat, chicken, fish, eggs, salad and green veg are all good meal choices as they are almost carb free. Fruit can be a challenge as things like bananas are high carb. I don't eat them any more. Berries (blackberries, strawberries, raspberries for example) are low carb, if you can tolerate them - some members can't. Starchy foods like pasta, bread and potatoes are also bad choices although wholegrain versions of pasta and bread are considered better as they are absorbed more slowly. If I have pasta it's a half-portion of wholegrain spelt pasta, and my bread is generally one of the low carb varieties although I use wholegrain granary bread for toast. I also snack on nuts, mainly cashews and almonds and occasionally walnuts.
One book worth reading is Can I Eat That? by Jenefer Roberts, which is aimed specifically at Type 2s. It's not a diet book, although there are some recipes at the end, but it explains what happens when you eat different foods.
If you want to check out the carb content of items that don't come with a nutrition information panel I'd recommend the following websites:-
www.ditchthecarbs.com and
www.healthline.com (the latter has lots of dietary advice too).
Wishing you well.
Martin