In my experience, most physical symptoms seem larger when you're anxious! But no, I've never heard of anxiety *causing* what you are experiencing. However, you might want to google Restless Leg Syndrome." A lot of my husband's family have it, and I have felt it occasionally myself. It's not exactly rare, and some of what you describe fits the picture.
Just a note: You mention feeling in a daze or in the clouds. That's a real indication that you should be talking to a doc who specializes in treating anxiety. There are little mental exercises that they can teach you, and also some medications that can help.
I can't think of how the leg issue is anxiety related, unless you are so tuned into you're getting phantom pain. The only other thing I can think of would be sciatica.