I stopped using fluoride toothpaste as i noticed the dizziness / neck pressure started getting worse right after brushing my teeth.
After a blood test earlier this year showed underactive thyroid, i thought i would try and intake more iodine.
I now use iodised table salt to brush with. [probably not a lot absorbed but better than nothing]
A further test showed that thyroid level had gone back to normal but.. i would say its a borderline case.
Anyway, for UK ppl u can buy this from LIDLs.. 13 pence! Also, I notice Boots now does a fluoride-free mint toothpaste.

Virago 30 / f / Scotland