I have severe pain everywhere(thigh muscles, chest, stomach, e.t.c) when i eat fruits vegetables both cooked and fresh, water, any sugary foods. why?

Pain everywhere: It sounds like you've had a medical workup and come up without an answer. One long shot answer is that the problem may be caused by unconscious stress related to those foods that results in muscle tension and associated pain. A psychologist might be able to help under those conditions. But, it's a long shot. Have you considered going to the mayo clinic or some other diagnostic facility?