for me, magnesium in powdered form helps. There is a product called "natural calm" that I take at bedtime, which is pure natural magnesium. I mix half a tsp ful into a cup of warm water. It tastes pleasant, like lemonwater.
Magnesium is a large muscle relaxer, but it is not a sedative. It acts like a nervine food, meaning it nourishes, or, brings greater amounts of nutritive oxygen and minerals directly to the spinal nerves.
I also massage my legs with organic sesame oil, which is a traditonal methjod of reducing nervous sensitivty. Sesame oil is best but others work.
Yoga helps for body-mind-spirit stretching and stabilizing. The yogic practice of grounding and anchoring the energy is probably one of the safest drug-free methods of addressing central nervous system disorderrs that I know of.
If you can find some community yoga classes or start a practice on your own, it may help you.
Good luck. Let us know what works foir you~~