I'm with Dude on this one...and I have one who is also in constant motion. Our focus has been
1. You are in control of your body. Your body is not in control of you. You can make choices.
2. This trait is not intrinsically bad, any more than electricity (or natural phenomenon of your choice) is intrinsically bad. It's a valuable part of you. You just need to use it appropriately.
3. Find an acceptable replacement behavior, that channels this energy/sensory-seeking/etc. into something productive.

...pronounced like the long vowel and first letter of the alphabet...