Hi Lynnie
Sorry to hear about your diagnosis only a few months ago,
I would not be surprised if your moodiness is somehow related to diabetes.
I have never known such a disease process that affects us in so many ways.
It must have been an incredible shock to hear your diagnosis, and even if you had some inkling,
once you realize there might need to be changes in your life, perhaps not to your liking, who would not be moody.!
Good job on taking action right away with a low carb lifestyle. That in itself should help to improve things mood wise and bodywise. Its a bit like when your home is messy and you get stuck in and tidy and clean, you feel so much better and in control.
Think of your body and mind as your home and get stuck in there too.
Noone wants to be doing housework nonstop, so set some time apart to simply relax, do something you enjoy, a simple walk in the fresh air, relax with a book. Many people can, and not saying this is wrong at all, become focused on learning as much as they can about a new change in their life, try and not focus on the bad things aka only human nature to become angry, plus unlike me I am in Australia in the height of summer, and if you are in the UK, winter is a terrible time to feel moody so be aware of that.
Looking fwd to hearing you are feeling better soon and have a tidier house