I haven't been FIRMLY diagnosed with Fibro as of yet.. my new PCP is still trying to rule other things out. One of my old doctors dx me with it a little over 3 years ago.
I'm not in a wheelchair, but I DEFINATELY understand the need for use of a cane or other walking assisted device - at least at times. There are days that I can't walk across the room without holding onto the wall or someone else holding me up. I literally have to crawl up the stairs some days. I have fallen numerous times.. once in the bathroom - hit my head on the side of the tub and got knocked out for about 5 minutes or so until my kids found me on the floor. It's a VERY scary thought that something like that can happen when no one is around. I'm home alone for about 6 hours every day.
I would buy myself a cane for those days, but I think it's my pride that gets in the way for me. I keep feeling like if I give in to needing something like that, I'll end up giving up. But that's just me.
As far as Fibro being progressive, I don't know. I've read that it's not, but I do have a theory. I think that over time, during flares, alot of us tend to just stop moving around.. eventually our muscles get weaker, making it harder for us to bounce back from a bad flare.. therefore every flare seems to get worse and worse because we're still trying to recover from the last one.
I had an EMG (I think that's what it's called - the electronic needle thing) a while back that did show that I had muscle deterioration in my legs. UNLESS it's not Fibro (which is a possibility), I honestly attribute that to my many many days of lying in bed all day because it hurt to walk so much. My muscles were just so weak.
No matter how bad the pain is, I make it a point to stretch my muscles every day. It really does help me out alot. I'm no where near as weak as I was 3 years ago.
Sorry I got to rambling there!!