I Have Been Having Problems For Over A Year And

I have been having problems for over a year and can't get an answer. I have had every test that possibly can be done. This is what happens:
I get sick to my stomach, sweating,weak, face gets flushed. I am left useless with no energy for hours. I did have them every once in a while, now eryday and seem to last longer each time. My tests are good and so is my blood work. Any suggestions?