Sleepless Nights

I don't sleep well at night ever since I was around 23 and my pain started to spread everywhere. Then it took my dr's 4 years to diagnose me with Fibromyalgia, or I should say I brought it up to them. They prescribed me Lyrica but it made my feet swell so I had to quit taking it. Ever since my mom passed away on April 5,2014 I have been having nightmares of the abuse I suffered from her. I try to stop her or wake up and I can't until it's over. I don't understand it, some people said she was haunting me. I hope not because she made my life a living hell 95% of the time

I don't think your mom is haunting you. It is very probable that you have major issues stemming from the abuse that you need to talk about with a pdoc or a therapist. If you have a T right now you seriously need to talk this out.

I don't think either that your mom would haunt, it seems more likely that some stuff happened with you two in the past that you couldnt get over and still need to deal with. Although my mother is still alive, I have a lot of nightmares her shouting on me for example.
Our normal sleep is extremely important, maybe you should consider taking medication for falling asleep (and staying) if you're not already.
I sympathize with you, don't give up!

I agree with the above two posters. First, it really seems like a good idea to talk to a therapist about the abuse and your nightmares. Secondly, I would suggest asking a doctor for some medication to help you sleep. Without meds, my sleep is no good at all. With meds (in particular, Xanax), I sleep a good 8 hours, uninterrupted. Best of luck.

I won't touch Xanax because that was my mother's drug of choice

If you don't want drugs for now (because of any reason), I still would suggest you to see a therapist about it. Maybe he/she can help you in an other way.
I have no history with sleeping meds, but if I smell lavender before I go to sleep (even to bath with), my night is different and calmer. Also I write to my diary at the evening, so it helps to put out whatever is on my mind and not "to take it" to sleep.
As I see it, not to take meds is okay for a while, but if this has an effect on your everydays and no other method is working, I would still consider it.

I have had a few nights as of recently when I have had trouble sleeping, last night it took me several hours to finally fall asleep and I ended up getting a few hours of light sleep but I am definitely feeling it right now.

She's not haunting you. She can't hurt you anymore.
It's simply your mind's way of dealing with the grief and the unresolved issues she left you with, and the flashbacks of trauma.
The dreams are your way of processing all of that.
It's your way of trying to get some kind of closure.
Let yourself have the dreams (or nightmares) without any judgement and without trying to stop them, they will resolve on their own in time.
Don't be surprised if you have a dream one night where you suddenly resolve your relationship with your mother. It might start out as a nightmare, and end on an unexpected pleasant note. This is your brain's way of getting some sort of closure that she should have given you when she was alive.
Sorry you're going through this. Be strong and take each day at a time.

i have insomnia too. a medication for it i can vouch for is zopiclone. 3.5mg really knocks me out for the night.