How much does TSH fluctuate? Mine ranges between 1 and 2.5 or 3 and I leave the dosage alone as it is so minor, almost seems seasonal. I stopped getting FT4, just confused things, did not correlate with TSH at all. Seems weird you are up and down with the same amount of thyroid hormone in, unless something interfering with absorption, like proton pump inhibitors. Since they just figured out proton pump inhibitors interfere, wonder what else might affect absorption that they dont know about!
Here is a new article saying grapes and soybeans affect absorption! Who knew.