having a strange day

I feel weird today and I cant quite put my finger on why. I know im tired but not the sleepy sort of tired, more like the worn out exhausted kind.
Its like im not really here, like im a ghost of myself, i cant seem to concentrate. yep a fibro fog kind of day.
I feel sort of pathetic, keep dropping things and shakey. i was trying to eat my beans on toast lunch and my right arm is shaking more than the left and my beans keep falling off as quick as i pile them on. i thought about giving up and had this fleeting imaginary thought of just picking up my plate and throwing it against the wall. yes, I feel an underlying anger to my demeanor today. totally unfounded, nobody has pissed me off or anything so I cant understand it.
I must look odd today too. Hubby keeps looking at me strange and asking if I'm ok. Of course I say I'm fine, how can I possibly describe to him how I feel when I cant put it into words for myself. I looked at myself in the mirror to see if I see what he does. Apart from seeming a bit tired and wishy washy i think i look ok.
I'm trying to do things, something to occupy my mind but i havent the energy or the concentration, just to write this short blog seems to have taken me way longer than it should.
Maybe I'll go lie down and see if i drop off, if not at least just relax for half hour or so and see if that works.