Thyroid Hashimoto's is an autoimmune illness caused by Increased Intestinal Permeability Syndrome aka Leaky Gut. BTW high dose Vitamin B12 might be helpful in the short term. 20mg a day is a reasonable dose. It might help reduce the problem while you solve the cause. Generous amounts of selenium will also be helpful. Split doses of 100ug at least 4 times daily.

Your chronic Candida infection is linked to all of this. However it is not the cause. The cause is a bacterial infection and Candida cohabits with these bacteria. The bacteria are gram negative and create a biofilm in your stomach. There is also an effect in the colon too. The bacteria COULD be helicobacter pylori, which is easily tested for. Whether you are infected by these can easily be tested.

To solve it you must defeat a biofilm which is very difficult to do, especially as so little is known about the bacteria.

Biofilms can withstand just about anything. Doctors usually use triple therapy to treat h. pylori and the other bacteria which cause autoimmune illness are at least as difficult to treat. Even more so because so little is known about them.

Colloidal Silver in generous doses might be effective but even that might not work. Adding DMSO would make it a lot more effective and I recommend that you go all out to defeat them because they will adapt very quickly so they should not be given any chance.

If you can defeat the bacteria, Candida will have no where to hide and beating them should be considerably easier. They seed from the stomach while the biofilm exists!