Eat or Not to Eat? This is the question.

I don’t even know anymore what is going on. It doesn’t matter what I eat or drink-I feel bad. And I don’t even know which food makes me feel sick,because I feel sick all the time. I wake up with pain, I go to work with pain, I came home with pain and go to sleep with pain. (Plus some other symptoms I am too embarrassed to write about.)
So should I eat or shouldn’t I?
I sometimes stop eating simply because when I don’t eat I feel better. What I mean by this is I have less pain. I don’t feel better in general. O no. I get very irritated, because I get hungry, but I don’t want to eat, because I don’t want to be in more pain. And finally when I start feeling some what better and start eating I am sick again. And I can eat banana for breakfast,or gluten free rice,orgranic,non-gmo ceral with organic,non-gmo soy milk and I will feel like crap. I will have just 2 sips of coffee and I end up in the bathroom. I can drink a tea and my stomach is in pain. I eat hummus with veggies and I regret I did.
I just wish to know why my body react like this to everything I eat? I would stop eating at all,but I don;t want to starve myself. And I love to bake and cook. It looks though that food doesn’t love me.