I am sorry that you are having such a hard time right now. I no longer have small children, my son is 35 and my grandson is 10. I have had this all my life, so I did raise my son and have to cope with all the pain and frustrations of having fibro. I was lucky, I was a full time mom and I had a lot of help from my friends and neighbors. Back then they didn't have a name for what I was going thru, but my friends and neighbors knew that I had good days and bad. We would trade off keeping the kids. If I was having a bad day one of them would take the kids and do something like riding bikes, swimming or just playing at their house. I in my turn would have the kids for a movie and popcorn or take them to the library for story hour. There are lots of things like that to do if you just get creative.
Your probably not sleeping well because of the pain and stress. As we all know pain causes stress and stress causes more pain, like a vicious circle. Maybe you should talk to your doc about something for the pain and maybe something to help you sleep.
As far as your mother is concerned, I agree with Marlee, you do need to keep moving. I know that is not easy and a must with small children. Get your Mom some good articles or books about fibro and educate her as to just what is going on with your body and emotions. I am sure if she truly understands what is going on she will be willing to help you out. Don't be afraid to ask for help. We all need a helping hadn once in a while. And don't feel that you are being weak if you through yourself a good old fashion pity party now and again. It can be very cleansing and make you feel better. Go ahead, have a good cry and then say: OK, I've got that out of my system, now how can I make things better for myself and my family.
We're all here to help and to listen when you need to vent. I promise, things will get better. I know that I am one of the ones who says that fibro will get worse, but somehow it also gets easier. I guess that after so many years, you just learn what you need to do and you do it. You learn to accept what you can't change and that you have limitations and somehow that makes it easier. I hope that makes sense. Keep your chin up and know that you do have that inner strenght to go on.
I know the feeling of guilt, feeling like a bad parent. I have three daughters, 15, 13 and a 10 year old. It has been rough, we have missed out on a lot and I feel horrible about it but kids are very forgiving. If you were to ask them what they remembered most about their mom, they would probably say snuggling on couch, not missing out on a day of shopping. My 10 year old was a concern for me for some time, she was very worried that I would die. It's not normal for mom to be sick in bed all the time. We had many talks and I hope that I have convinced her that I will not die from this. I have actually noticed something very important in my kids, compassion. They feel for other people and want to help. Someday one of our children might be the one who finds the answer to our prayers. It's important for children to understand what we are going through so talk to your 8 year old. She will understand more than you think. Ask her what she might be able to do to help you. Maybe she can make sandwiches for dinner or fold some towels for you. She will feel a sense of pride and that alone can make you feel better.
I also wanted to tell you that I am taking prozac and pamelor and they have worked for me. I still have pain but it's manageable. The pamelor helps me sleep and I don't feel yucky the next day. I was worried about not being available to my kids at night with the meds but that has not been a problem, they have woke me when they were ill and I can get up with them. Sleep is really important so do what you can to get rest. Do whatever necessary to get some quality sleep.
As far as your mother goes, if she will not help there is nothing you can do. Don't worry about her for now, help yourself first. I'm sure she loves you but like so many people, they just don't get it so don't stress about it.
Please take care of yourself and don't worry about being a bad parent, your children love you and don't care if the dishes didn't get done or the floor isn't vacuumed. Peanut butter and jelly sandwiches for dinner three nights a week, who cares, the kids don't.