Yep! The first anxiety attack I ever had, I thought for sure that I was coming down with a horrible flu...I kept thinking 'Wow, this is going to be a bad one!' I felt weak, dizzy and like I just needed to lay down, right in the middle of church no less!
I still occasionally get the weak feeling in my arms or legs, but it is milder and doesn't go into an attack. I think that it is due to not breathing properly, and it's my bodies way of responding to the shallow breathing that I tend to do when stressed. Deep breathing really helps to reverse the symptoms.
Take a look at this link...it is the most comprehensive list of anxiety symptoms that I have seen. It may give you some reassurance to see some of the ones that you've experienced.:)
"Courage is not the abscence of fear, it is feeling afraid and doing it anyway!"
"It is when we are most lost that we sometimes find our truest friends"
Panic Syndrome recovery due to CBT