Hi Grammie,
The end of week one -well done! I agree with Switzerland – have a look at what you have been eating. The BSD book says do not get too hung up on 800 as some days it will be 750, others 850 and it evens out over the 8 weeks.
What I found to be more important was the amount of carbs and fats in by diet. When I started I used premade shakes for 3 meals a day – they have skimmed milk added to them. I was hungry a lot and it was only that I noticed I was losing weight (no more than I would have expected from a ‘normal’ calorie restriction), but I was losing the weight disproportionately from my bust and hips and less from my waist, that I checked the carbs in the shakes and they were very high in carbs and low fat as I was using skimmed milk. I was taking in 90-120g carbs per day so not getting rid of the fat around my middle.
Once I moved to full fat yogurt, dropped the shakes and started cooking from scratch – the weight shifted at around 2kg a week thereafter plus the cms started coming off of my waist and I now am back to a normal shape.
Personally I found 60g carbs per day works for me – I am veggie so it is hard to get below that and still get enough protein. Most people are going for 50g per day or lower – you need to find out for yourself what works for you. Too low and you may well get cramps. This diet focusses on low carbs and high fat to get the calories you need and full fat keeps you feeling full.
Other tips – allow 50 calories a day for things to nibble on – a few nuts, cherry tomatoes, celery sticks, small pieces of cheese or adding milk to coffee of tea makes the coffee and tea more filling. Having them around when you get a hunger pang stops the need to raid the fridge and for me, stops me bring forward by an hour my next meal!
MIndfulness also helped me – see the mindfulness forum for ideas.
Good luck – it gets easier week on week will by week 3 or 4 you forget that you are eating very little and it is the norm and satisfying.