sounds like you have a parasite. True a lot of those symptoms can be from Candida. But if parasites have compromised your gut function and immunity, yeast is going to take advantage of it. We all have some yeast and if you cant control it with a clean diet, you may have a parasite.
you are in the right place, there are lots of people here with similar problems. It is hard to find a doctor who will diagnose a parasite problem. I joke that we should all go to a good Veterinarian once a year for worming.
I encourage you to stick with it and don't give up. My entire family recently recovered from a long battle with tapeworm. Don't be afraid to experiment, get microscope, demand multiple stool tests from your MD, talk to a vet, visit the pet store. Also, check out protocols from ICU on this site. They are reliable and safe.