I've got fm.
My problems are pain! pain pain pain pain pain. I hurt everywhere. All the time. I don't mean agony - that only comes if you touch me on one of my trigger points! - I mean, well, the only way I can describe it is that I am aware of my body. I can feel it. And not in a good way!
I get a lot of pain in my legs. They are quite weak. I have to use a vehicle with hand controls.
If you touch me on one of my trigger points, I will cry and it will hurt for ages.
I feel like I am trying to think through treacle! I can't think clearly at times, I often forget what I am saying when I am halfway through a sentence. I use the wrong words. Like, I'll mean where's the remote, but I'll say where's the table 
My short term memory is non existant. I can't remember whether I've had my pills (my husband has to give me my meds), can't remember what I've said, or what's been said to me.
I have an underactive thyroid - now, some drs say they are seperate, but others say that fm is itself symptoms of an underactive thyroid, from what I read.
I suffer from really bad mood swings and low moods.
I have restricted muscle range - I can't touch my chin on my shoulder, or my chest, for example. I have a 'biting point' beyond which it is tight and painful.
I am weak. I can't lift heavy things or hold onto them. I can't even lift a full kettle on a bad day. Can't drain a big pot of potatoes.
My sleep is awful. No matter how much I sleep, I never feel like I've slept.
So, if this sounds familiar, it probably is fm.