Yes, it sounds like your legs are holding some sympathetic energy for sure, and that this has been contained by some freeze. It may be useful to try sitting in a chair and letting your legs ‘run’ a bit while sitting. You can do this just by lifting the heels up and down and imagine running, or play with laying on your back and pushing against a wall, or a pillow held by a friend, who is able to give you some resistance. Your legs most likely want to run, kick, or push away