nocturnal leg cramps
"for several years I had SEVERE night time leg cramps.  They got so bad that the veins in my legs would bulge out of my skin from my toes to my groin area.  I would be unable to walk so my husband would help me to the tub where he would have it filled with the hottest water I could tolerate, which really helped a lot, and I would take 2 OTC leg cramp pills.  But the veins popping ou got so severe my husband took me to the Dr. (Again!) and we explained about the veins popping out.  He sat there for a moment and then like a light bulb came on he said " Let's try something.  I'm going to put you on a channel blocker and let's see if that helps."  That was 2 years ago and I no longer get 

leg cramps where the veins are popping out!"