Hi Jessica,
I have anxiety for a few years now...but the last year and a half it has increased...when I noticed the changes, having panic attacks, one of the first signs were my arms going weak, particular my left side. My friend took me to the A&E and the doctors did not know what was wrong and told me that I had an case of muscle spasms...but then later found out that it happened when I was very anxious and/or on the verge of a panic attack....You take care and keep us posted.
Best,
B