gilbonzo and chick, i too have done the same no eating, not losing weight thing. it is not good. But as forever says, the damage isnt permanent. I think the thing is you have to keep your metabolism going, so eating little and often tends to work better. Dont skip meals as this adds to the problem and make sure you do eat over 1000 cals.
Ive lost 2lbs a week for a month and this includes a whole blow out day on mothers day of crossiants and chocolates and a large 3 course meal and lots and lots of cake and then a bit more choclate and then a hefty amount of bread and cheese and then next day i had quite a few slices of pizza and yet more chocolate.
The friday before that i had double helpings of shepards pie and then again, because i thought id fallen off the wagon, a large amount of chocolate. But ive still lost 2lbs that week. Lord knows how... as i know in the past ive hardly eaten anything a day, maybe 500 cals and lost only 0.5lbs or something. You do need to eat to lose.
Im at my mothers for tea tonight and shes doing my favourtite, homemade meatballs with pasta. Ive told her i shall only have 4.. and made sure i ate under goal yesterday and have worked out what im eating today.. and ill slightly go over 1200 today but im not going to worry about it too much.
I think the not eating thing is a bit of a mindset you get yourself into as well. you eat hardly anything and see no weight loss and then beat yourself up because you are hardly eating and nothing is happening... and you wonder how other people can eat and still lose while you are living on air... so, after a while you think sod it, and give up ( because noone can survive on such a limited diet for so long) and go back to eating lots.. while your body, that has been being starved grabs hold of everything and you pile the weight on.
Then the thought of dieting, which to you means living off air becomes so horrible that its really hard to start up again.....
MFP is good. it tracks your food for you. you need to eat 1200 just to get by day to day. It will tell you if you are under... so then you go eat something else.
Stick at it and im sure you will lose.