I am newly diagnosed with type 2 diabetes, it is doing my head in. I feel as I hve been given a death sentence. I love my food and now I'm so frustrated trying to understand what I can and can eat. I'm always tired and hve never slept so much as I have since I started taking metformin, I'm irritable, grumpy cry at the drop of a hat and tonight my daughter made me a diabetic jelly my test 2 hours after dinner was 10.6 before dinner it was 6.4. Being so tired and confused and grumpy... Is it normal and how long does it last for?