Well done Sammy on getting to day 4 - the feeling you're experiencing now will pass (I promise!). Keep focussed on your goal, on your reasons for doing CD, keep busy, keep posting on here, keep drinking water, keep doing something that isn't eating!
You'll regret it if you give in and will beat yourself up about it, so spare yourself the anguish and remember that you deserve to feel good about yourself - you're well on the road to success so it's within your grasp.
Don't do it. I went through exactly the same on day 3, and woke up day 4 and was fine, and have never looked back. If you haven't got to your 50 posts to see peoples pics, I went on facebook, and there is a group there with loads of before and after pics, and that was pretty motivating. Good luck, and keep it up, have an early night and all will be well in the morning.
Hi Sammy, oh I know it is hard. When I tried this diet without this forum I lasted about 4 days and was in my bed crying with depression. This forum has made all the difference for me. Knowing other people are doing it and succeeding, knowing other people are going through the same difficulties all helps enormously. You can do it. Im not on it too long but after the first week it is easier- you kind of get used to being desperate to eat. I've lost roughly 1st 5lb in 4 weeks which makes it feel very bearable. Just think how much you want to get thin and this diet is doable and fast. Good luck and you're doing great so far x