I agree Sundial. It sounds like over training. When I get like this my coach makes me take a "black curtain" break. The phrase is taken from a friend of his that trains for RAAM and literally puts black curtains over his windows once a week and tries to sleep about 20 hours in a 24 hour period. What I do is I take the days he's assigned (usually 3 days off when I'm in the state you are in) and during the time I would normally be training, I try to sleep. That means sleeping at least 2 extra hours a day, sometimes 6!! No telephone, no TV, just lying in be and hopefully sleeping.
Even if you don't go to the extreme. You definitely need a break.
Living life like there's no tomorrow.
http://gorgebikefitter.com/
2007 Look Dura Ace
2010 Custom Tonic cross with discs, SRAM
2012 Moots YBB 2 x 10 Shimano XTR
2014 Soma B-Side SS