Dreams are crazy! Sometimes they make you feel great or they can make you angry or sad. Sometimes they set the tone for your entire day. I had a sad one, so now I'm stuck feeling crummy until I snap out of it. Makes no sence at all, blah blah blah! 
morwok:
I can certainly sympathize. For about 2 months earlier this year, I kept having this awful depressing dreams, hell I guess you could call them nightmares, just not of the scary variety. I slept like shit, and walked around in a funky haze most the time.