Hello, everyone! I just registered here in hopes that someone may be able to give me some insight into my problem. Okay, here goes: I have had fibromyalgia for a long time and have several spine issues. Those lead to two cervical spine fusions that left me with some residual spinal cord damage. My problem that developed just recently, and you are going to think I'm absolutely crazy, is that when I am startled or wake up suddenly, my lower extremities start having very rapid seizure-like movements. This will last for approx 3-4 mins, then they stop and it feels as if scalding water is being poured inside my legs. I would be grateful to anyone who has any ideas or information.