I'm not sure what a gp is, i'm never good with abbreviations. What you're going through right now is not a good thing, even if you don't want to eat, you have to get the right nutrients in your body. I really suggest going to find someone who can help you out with this, because not eating or not wanting to eat is a serious problem.

I feel that I don't want to eat either its not that I have a problem with my weight and I am skinny and I know I should be eating. But I don't know why I can't eat I feel I can go a whole day without eating and I don't understand why I find forcing myself to eat, but I feel sick. Whats wrong?

If you dont eat like you should and not eat at all sometimes it makes it harder for u to eat something when u know u should. Sometimes I have that problem, just the sight of food makes me sick. I usually just try to eat slowly and build back up to eating right, but thats me. Hopefully it will help.

I have a very crazy schedule with school and work and each day is different for eating times. I have found that since this has happened I do not feel like eating all the time and sort of get used to the idea, and my stomach does too. This is also kind of like when I was younger and never ate breakfast before school. I physically felt sick if I ate breakfast. What I did is I slowly increased food intake in the morning until I could eat a good meal size for breakfast without feeling sick. Same thing for all meals. You need to time meals and set up a plan to build up the amounts of food you eat. Start small like a piece of fruit or toast and build up to meals. This has worked for me, and in my current situation I know that I have a sparratic schedule and I need to make sure I fit in proper meals!