You just described many of the classic symptoms of yeast/heavy metal trouble. I've had many (though not all) of them at one point or another.
I felt sick for decades. I followed an anti-yeast protocol for a number of years and felt better, but I couldn't get rid of the problem. Then I replaced my 12 silver fillings and began chelating. My symptoms obviously improved in 6 months. I highly recommend you do the same. I think it will help you tremendously.
Oh, and don't completely trust heavy metals tests. They are infamous for not giving a true picture how much metal is in your body.