Sometimes her palms bleed her finger nails go so far in ?

Alright one of my best friends, she gets these HORRIBLE nightmares, sometimes she doesn't remember what they where she Just knows they scared her shitless, other times she remembers %26amp; its from past child hood experiences. She kicks %26amp; flails around %26amp; makes weird noises, half the time she ends up hurting herself like smacking her arms off of bed side tables or so on %26amp; gets bruises, it doesn't usually stop her sleeping, nor does she dread sleeping to much, she goes to bed willingly , also sometimes during these she shoves her finger nails so far into her palm that it either leaves marks , bruises, scratches, or makes them bleed. How does she manage that ? I myself tried (like the jackas s I am) to see how she could possibly do that, I pushed as hard as I possibly could %26amp; left deep marks but they faded rather quickly. How does she manage this ? Also , I have never had a real nightmare in my life so can someone fill me in about them , how in the world she started getting them, it hasn't gone on forever but it started abruptly %26amp; wont stop, what causes you to have nightmares this bad? How can I help her ? Thank you!


P.s.: waking her up does nothing, if you wake her up first off shes pissed at you, but then when she goes to sleep once again, they come back.Sometimes her palms bleed her finger nails go so far in ?
maybe she just needs to tell some1 about these childhood experiences or maybe she needs to tie herself down maybe she has some mental disease tell her to talk to her docterSometimes her palms bleed her finger nails go so far in ?
My step dad had that. He broke a window screen trying to escape from some beast. And when he was younger he climbed to the top of an apartment building butt-naked trying to get away from something. He's had dreams with razor-toothed people eating his toes and some night I've woken up to him screaming. Have her take some B1 vitamins and a calcium/magnesium blend before she goes to bed. I know I rarely got nightmares when I took them. You can get B1 in most vitamin aisles and you can search calmag up on the internet. It does wonders and it's natural, not a whole bunch of mind altering drugs.
Sounds scary. Maybe she should go to the doctor. If she's fine with it, then there's not a lot that you can do personally to help her.