Back Pain

My back has been hurting me now for almost four weeks. My sister and I lifted a couch about four weeks ago. It was a real challenge trying to get this couch moved. Really it was a man's job to move, but we thought we could handle it. The door we was trying to get it out of was small, so it was a real struggle trying to get the thing moved.
Three days after we moved it my back started hurting. I thought it would get better, but it has not. In fact it is worse. Many nights I can't sleep. When I lay down, it is like I am on a nerve. Pain starts shooting all through my right side of my back. I can not find any comfort no matter which way I turn. Last night I slept in the recliner for a couple of hours and got a little relief. I went to the Doctor last Tuesday. She put me on some strong pain killers, and Skelaxin. (That is suppose to help relax the muscles) Nothing is helping. During the day I get a little relief, but I am so sleepy from the pain medicine that I can't function. I really don't need to be lifting anything, but it is so hard with a two year old who is potty trained. Brooke can't get on the toilet, so I have to lift her. Many things I have to lift Brooke for. Kevin helps when he is here. This has been his busy week and he has not been home much. Brooke still likes to be rocked. Many nights I have had to just tell her I can't tonight. She is sweet. She will say "I rub your back mommy."
(If only that would help.) When Brooke wakes up at night, and keeps crying I have to pick her up if Kevin is not here. It is really tough.
Friday I was doing much better, I thought. We went to the park with friends and watched the fireworks. I had to lift Brooke a good bit that night. I paid for it last night. I was so miserable.
I am suppose to have a MRI Thursday, but I don't know if I can wait that long. Some moments I feel like I can not take any more pain. I have tried ice packs, heating pads, nothing is working.
I did call Kevin to pray last night, and God gave me a little relief so that I could sleep.
Today has been horrible. I had to leave church because I was hurting and the pain medicine was doing nothing but making me sleepy. I am really scared about the MRI. I thought it was just a x-ray. Kevin told me I would be going in a closed machine. I got sick thinking about it. I just don't know if I can handle being closed up. I am going to see if they can do a open MRI. If not, I just don't know if I can do it. I guess I don't have much choice, but it does scare me.