Muscle weakness and tremors from low thyroid

You would think tremors would be from hyper thyroid but I seem to get those and muscle weakness in my legs when I am low. Does anyone else have this? My legs tremble and it's really bothersome. I've finally noticed it's when I am low.

Yes, but both were in my arms.

But, I also had/have lyme(it never really completely goes away).

Both have similar symptoms.