I know for me. It took forever to get my dosage correct. I get checked every 6 months to see how it's doing. That's when we see if it needs to change dosages. So far, thank you lord, it's not changed for the past year. It is a trial . Let me tell you. I just see my Primary Care doctor

My primary doctor wouldn't treat me and I have a Functional Medicine doctor that actually listens ro me and if it's something she doesn't want to do, she explains why.

Endocrinologist!!! Been going for nine years and my primary just can’t help me the way she does for my thyroid. She also found my pcos when my primary told me I had something else and wanted to remove my ovaries as a teen

Functional medicine!