After a sleep study about 5 years ago, DH was diagnosed with Resless Leg Syndrome and also with Periodic Limb Movement Syndrome (PLMS) ...the latter of which he says "I guess that's as close as I"LL come to PMS"
The restless legs can be occasional and occur during the day as well as night, and actually is more commen in women than men.
The PLMS is ore of a sleep disorder , in DH's case, more severe...enough to interfere with his sleep (AND mine)....adn he ended up needing a referral to a neurologist and a fuill sleep study. I told him to tell his fancy sleep specialist that I could have saved them all a lot of money on the sleep study and just timed the leg spasms for him

...but of course they wanted all the other stuff recorded through the night too...heart and REM and so forth. Anyhow...DH's legs would "jump" so hard and frequently that a decent nights sleep for him or me was impossible. Literally jouncing the bed...as oftern as 4-5 times a minute sometimes. This developed fairly quickly from an minor annoyance to a really serious sleep deprivation issue over a period of less than a year. I guess there are some neurological connections between this and Parkinson's Disease, and he's had to use a combination of medications..... a sedative type thing to help fall asleep, and a mild form of some type of medication used w/Parkinsons and/or seizures to help control the "jumping". Not much fun.
I think they actually sell some stuff over-the-counter for controlling the occasiona bout of restless legs. Deficiencies of certain vitamins and/or minerals can aggravate the problem and so sometimes symptoms can disappear after having a baby when your body "settles down" or after getting the right dosages of the right vitamins....through a balanced diet and/or supplements. And just like with the PLM, the "usual" sleep disturbing things aggrate it even more...alcohol, caffiene, stress......
was this TMI??? sorry!!
hope it's not an ongoing problem for you Laurie!