I haven't posted here before, but I do come here for reasurrence when I read all of he post.
I wanted to comment on the tremors. I do know that some meds do cause them like the others have said to you.
When my anxiety would get so very bad, I would get body tremmors. It was aweful. It was so bad it was almost like a seisure. My body would just shake from head to toe.
I was tested for everything too. For me it was when my anxiety was over the top.
I hope that this brings some comfort to you.