New Diet & blood tests

I started a new diet on Thursday - from Herbal Life. My friend is a distributor and has been after me getting onto the weight loss program they do for ages. I finally decided that I should give it a go.
Its a drink-shake for breakfast and lunch and then a low carb meal with lots of veg for tea. You take vitamins & minerals with each meal and there is this stuff called Thermo tea to drink it. Its got natural caffeine in it and is as good as coffee for giving you that lift you need.
Well, as with all things like this I was very skeptical, but.... the first day I lost 3 pounds and this morning when I got on the scales I'd lost a further 2 pounds. Now while I've got about 8 stone to loose and 5 pounds isn't much, it does feel like I'm on the road to somewhere.
Of course being an old hand at many kinds of diets I know that you do loose a good deal in the first week - often just a whole load of water. But I've upped my water intake to over 2 litres a day, so I'm fairly certain its not to do with that.
On another positive note, I had a letter from the Doctor this morning following the blood test I went for on Wednesday. I've been really tired and crabby with mood swings and itchy skin for a while. Robin kept saying that the symptoms were of diabetes and I should get it checked. Well the 1st urine test wasn't normal, the second was. So I went and saw the doctor and asked for a blood test. She was reluctant to say the least. Gave me a lecture about not labeling people with things, as though she thought I wanted to be diabetic. I've watched Robin inject enough to know I don't want it, what I did want was an answer for the tiredness I've had recently.
So, she eventually agreed, after we'd spoken at cross purposes about a few things for a while - her command of English wasn't that good.
Had my arm stabbed on Wednesday and half emptied into little vials for the nurse. Letter today says that there was increased sugar in the blood and they want to do a fasting test on Thursday.
At the end of the day I don't mind what the outcome is, at least I've proved that there is a reason I've been so tired. Obviously I don't want to be diabetic and if they can pinpoint it now I can do something about its onset that would be the ideal. I know lots of people that manage to stave off full blown diabetes for ages with just diet alone. So fingers crossed!