My always low HDL definitely points to some things. It had been 31 for a while, and in my 30s dropped to 26. Crestor and at least trying to be healthier got it to 32/33. (not really crediting Crestor here, but that was a factor at the time). Now carnivore got me to 39. That tells me I'm on the right track. I will be exploring more ways to raise my HDL number.
I've been tested for thyroid issues before, and had some family history of it. Tests did not show any abnormality. TSH with reflex to FT4 was 2.13, 5 months ago.