Have you had a stool test? More specifically, a good one, like the Rocky Mountain Laboratories test? You didn't list it. That may be the key to figuring out what's causing your problems. Often with Candida, your gut gets way out of balance, and you end up with more than just a Candida infection. A stool test will detect other bugs as well, and they also test the bugs they find to determine what will kill them most effectively. When I had my test done, they found a number of other bugs, including amoebas. All of them had to be treated for my health to improve.