I've had just one of these and it was horrible. Lying in bed, I started to get subtle pins & needles in my feet which moved up to my knees and the numbness just

I've had just one of these and it was horrible. Lying in bed, I started to get subtle pins & needles in my feet which moved up to my knees and the numbness just kept moving up. I thought I was having some kind of stroke so I jumped out of bed and by the time I was in the kitchen 10 seconds later I was fighting not to faint, which I thought would lead to me dying. I kept pacing around the kitchen table quickly, basically walking laps for about an hour until it subsided. Told my girlfriend to call an ambulance as soon as I hit the floor, which luckily didn't happen.