where do i start?

i have never exercised compulsively but have lost a lot of weight by reducing the calories to less than 600 a day. and now i have no appetite and even though i can see that maybe i should increase the calorie count i just cant. i just want to be thin so badly that i dont want to increase it incase i put on weight. this is so consuming and its making my work suffer and my social life too. i used to want to go out with my friends all the time and now im afraid to leave the house because i feel fat and i dont want people commenting that i look thin because im not thin really, just thinner than i was and i hate it even more when i see people and they dont comment at all after all the hard effort iv made to get thinner and lose weight. i cant do this anymore but equally i cant see a way out. some days i just go to sleep so i stop thinking about food and being hungry. please give me a starting point, something to start from so i can stop this.
(NOTE: i came to this forum because i thought you all might be able to help and understand my problems more, not because i have the same thing)

ive been doing around 700 a day for months and i exercise 3 to 4 hrs everyday if i eat something i feel im shouldnt have i exercise more. i lost 3 pds this weekend. i know it isnt healthy and im scared but i dont know how to stop.

I used to be scared to stop. What would happen? Would I get fat? Would I be able to control myself and not binge? These are some of the many questions I grappled with for many years. I was 16 when I first started to have feelings like this.

I went to counseling and more or less BS'd the counselor and I avoided like the plague anyone who I thought could possibly help me. I was in my mid 30's then.

Now I am 53 and am just getting my life into order. Somewhere along the way I decided that I didn't want to have the last half of my life be as miserable as the first half.

It has been my experience that people with anorexia don't usually get over it by them selves. I would advise anyone who has the beginning signs of an eating disorder to run, not walk to a qualified therapist for help. I wasted a good many of my years being too thin, nearly to the point of death.

You most likely have the rest of your life ahead of you. Get help soon! The sooner you get help the better your chances of recovery.

Sweetngentle

thanks for the replies, they have been very helpful but im still struggling.

today i ate less than 600 and exercised for 40 minutes, burning 400 calories in exercise. that leaves me with 200 and im not hungry - so i shouldnt eat, right? i get so confused... if im not hunrgy then surely eating would NOT be the right thing to do? i dont know anymore and im gradually coming to accept that maybe my idea of a normal portion, a normal meal is NOT normal. thinking back to when i was younger a pasta meal would be the norm and id happily munch toast in the evening without a care. now i only eat chicken, tuna, cabbage, salad, tomatoes, apples and oranges. and i drink lots of tea, with skimmed milk or no milk. thats a very short list - this thing is consuming me.

i cant change this i dont think: regardless of calories, i just couldnt bring myself to eat wholemeal bread or pasta, and certainly wouldnt go within a mile of white pasta. im still 20% bodyfat according to my checker so im not anorexic or anything i just need to stop this because its crazy and i know its crazy but i dont know how and i dont want to stop losing weight. where does that leave me?