ahiru, have you had a physical check-up recently? Maybe something is going on that is contributing to how you're feeling? Stress is draining, that's for sure.

If walking hasn't helped you feel better, I think you might want to consider seeing a doctor for a check-up.

Since I began the thyroid medication at the increased dose, I feel better. I also think I was trying to get by on not enough sleep, and the stress added to that was just too much.

I hope you feel much better soon!