Restless leg syndrome - help!

Darcy • 31 y/o happily married. Can't have a rainbow w/o a lil rain. 💦🌈 😇mom to 2 Angels &1 rainbow due 3/24/16. IUI/ Clomid
Only 13w along and already have the worst restless legs at night! My poor husband can't handle my incessant tossing and turning at night (interrupted by frequent bathroom
Breaks!)  I had it a bit before pregnancy but it's out of control now and I imagine it will only get worse as pregnancy progresses! :-/ any help appreciated!