Zinc and Selenium are chelators so it is good to take those. Except - make sure they are the "chelated" kind (e.g. "zinc citrate"), otherwise it is a waste of effort and money. BTW, when I saw your uranium levels, I was going to ask you if you lived close to a nuclear plant... and then, I read the rest of your post...
I would stop eating fish which is rich in mercury. Choose sardines and perhaps smaller salmon and trout as those are the cleanest and stay away from bottom feeders (sea bass), and those at the top of the food chain (shark, swordfish, tuna).
You did not say what was the exact antibiotic that you took. It can be essential piece of information.
In japan, one easily develops candida problems due to their heavily fermented food. However, six months of candida diet with no sugars and nothing fermented (no miso, no alcohol, no sake, no starches of any kind such as rice, potatoes, dough etc) combined with probiotics and at least one strong anti-fungal such as nystatine, should produce results. If it doesn't, that means you have some other problem (as well).
To get rid of mercury and uranium (do not understimate those two! There is NO such a thing as "safe" level for either - we are talking two most toxic elements on the planet!), best to use Edgar Cayce
detoxification protocol: start by taking some atomidine, one drop in the am, one in the pm, on empty stomach, 30 min before food; increase by one drop every day, until you reach at least 7 drops twice daily. If you feel better, you may go up to 8-9 maybe even 10 drops twice daily. (don't eat too much Iodine
rich food at that time). Your symptoms are very likely to improve by that time. Then, reduce the dosage back to 1 drop twice a day. Then, take an Epsom Salt
bath in a saturated solution of Epsom Salt
in a bath tub, in as hot water as you can take; start with lukewarm and keep adding hot water until you start to sweat. Keep that for about 30 minutes. You will probably continue sweating even after you finish with the bath. (Get up slowly from the bath, you will feel week and may faint if you are not careful!).
This will get rid of not only mercury and uranium but other toxins too (brain fog is a result of toxins, such as mycotoxins). You can repeat this type of Epsom Salt
bath every week. Even twice a week is safe.
The advantage of such detox is that toxins will go straight from your blood and tissues into sweat and into water. Epsom salt relaxes sweat glands and improves release of toxins. Any other method, Cutler included, necessarily has a much more complex pathway which inevitably leads toxins either through liver or kidneys - which one of the two do you consider unimportant? You get the idea: every detoxification is re-toxification. Most people just keep moving toxins around...
You can also start taking atomidine as a regular supplement, one or two drops a day, it will work as a natural antibiotic for you. See if you feel better with it - you most likely will. If not, then don't take it.
best of luck!
ps. I would choose carefully what I eat after all the events with Fukushima disaster... and eating beef is a good thing for those who suffer from CFS, especially grass fed beef. Eat organic, and stay away from algae as they absorb bad stuff too, when ocean is dirty as it is now. I would also not even touch any shellfish or crustaceans.