I have had them, though not in pregnancy. And MS does not run in my family that I know of. I have, however, noticed that my restless leg syndrome has been acting up sometimes. That does run in my family and I remember the last pregnancy it was particularly bad in the last couple months, then when the baby was born, it magically went away overnight. So I'm expecting it to happen again.
Four children. Just welcomed our newest member on 2/12!