Oh, I am so sorry, and so with you on the frustration of having to change course. It's NOT "giving up," or "quitting" because you don't do that! You just made a good, evidence-based, self-caring decision to pursue fitness in a different way for now. And I totally agree with your earlier commenter who said that you "kicked a whole lot of ass."

Also sending sympathy and solidarity with the Hashimoto's problem. My sister had a thyroid problem that resembled Hashimoto's more than anything else, and ended up having to get half her thyroid removed because it was making her so sick. That was after ten years of being treated as if she was mentally ill and didn't really have any problems that she couldn't have just sucked up and dealt with. I still seethe and want to kill somebody when I think about what she went through. Ugh.