Friday In The Middle Of The Night I Started Having

Friday in the middle of the night I started having severe muscle cramping in my thighs then it went down into my calves. The pain was severe . I couldn't walk or move it was a paralyzing feeling. I tried to stretch my legs but any movement hurt. Half way through the 10 plus minute ordeal my left toes suddenly cramped up & curled in. I couldn't get them to uncurl til after the pain stopped. I was dripping sweat during this time & a headache came on afterwards. I had a small episode (minus the toes) about an hour before this one. I had gastric bypass surgery in 2005 & am wondering what this is...I have had a few of these episodes over the years. as of now my legs are sore, my toes are tingling & I have tired since then. What could this be? I'm thinking about going to a doctor today...