Weird, I've never heard of it.. It's only happened a few times to me! But I'm not completely paralyzed I can still move but it's kinda like thrashing movements? Idk if that makes sense. First time I was home alone I called 911 cause I couldn't walk and when they got to my house to brought me to the ambulance gave me some sugar and it started feeling better and they said I was fine.. I've tried talking to the docs at the hospital and my endo and they just say it's low numbers you'll be fine! Ha, when it happens it's terrifying.. They have no idea!!