OMG! I'm so sorry for you Jeannie,
It must have been a very sad time for you, i just want to hug you now.
I hope your nightmares go away soon, i know how bad nightmares can be, especially personal ones. I have nightmares about bad stuff too, my brother was a bit mental and he tried to hurt me badly more then 3 times and i sometimes have nightmares about it.
Sometimes they get so bad you don't want to sleep but you just have to find a way to deal with the nightmares, your own way. Like putting the nightmares into mental boxes, or what i do sometimes is keep a bag and u write down my latest nightmare keep it in the bag for a week then burn it, it helps a bit.
This doesn't make the pain go away but it helps with the nightmares slightly, i hope it helps you