Over thinking, under doing

lying in bed thinking I should be writing my letters, I should be tidying my room, putting my clothes away, replying to the txt messages I got today which I couldnt be bothered replying too, folding my washing, sorting my clothes for work tomorrow, taking my make up off, drying my wet hair, taking my nail polish off, watching another episode of sons of anarchy to distract myself....
but I CAN'T DO ANYTHING. I AM LYING IN BED STARING INTO SPACE, DISASSOCIATING.
NOT EVEN THINKING BUT THINKING TOO MUCH AT THE SAME TIME.
What is happening to me? What is wrong with me tonight?

 It's taken me almost 20 minutes to write one paragraph.