Slinky - I get all kinds of bodily symptoms, and they all cause huge anxiety for me. Sometimes both of my legs feel stiff or "useless", sometimes its both arms. Sometimes, it my whole right side, face and all! Its hard to figure out what comes first - is the anxiety causing the symptoms, or are the symptoms causing the anxiety? I am seeing a neurologist for my symptoms just to be on the safe side because until I see some tests, I cannot just take a doctor's word for it that its all just nerves! Its hard to believe that your nerves can cause so much physical sensation.
If your legs feel weak, then challenge yourself and run up and down stairs by two's or something to prove to yourself your legs aren't weak. One time, I felt like my right arm was numb and "weak". I got so sick of worrying about it, I took some dumbells. I curled as many as I could on my right side, until I could not do another single curl - until total fatigue. Then, I did the same thing with my left arm. I did EXACTLY the same amount of curls on both arms, so there was no true weakness, there. It helped me a lot to know that.
Are you doing the panic program on here? I am finding it to be a big help. AP