Hi,
Relatively new to all this, but like you I never feel hungry! One thing I have learnt over the years; and more importantly now; eating 3 meals a day is essential on any diet. As I cant judge mine by hunger pains I try to do it by the time of day. So I will eat when I get up, also around 1230-1pm and again around 6.
It's important to try and eat at regular interfuls and more than just toast or you run risk of malnutrition, other dietry complications like anaemia (this may also be why you sleep a lot) and possible anorexia etc.
Start by introducing small amounts of different foods at each meal time, gradually building up to normal healthy portions then you should start feeling better and loosing weight. Just eating toast maybe why your BS's are all over the place, carbohydrate turns into sugar in the body increasing BS, no food will lead to low BS's and hypoglycemia.
Take back control, you owe it to yourself and your body, so you can start enjoying life again and live it to the full.
Maggie/Magpie