If you just got up from sleep then maybe you had some bad dreams, that you don't remember now..
Not enough affection, haven't made love in a while, not enough sunlight, would be my guess.
it i Friday cheer up
It could be PMS ;p
There are a lot of changes in the electro magnetic fields of the planet right now that directly affect the functioning of the brain. That and the fact that we have been fed all this 2012 mis information that ties our subconscious memories back into a timeline or past lives where we did experience what seemed like the end of the world. And the emotional residue filters in on the waves of electro magnetic fields as they were the same frequency back in that lifetime when the Earth went through massive overhaul.
Just know you will go on and you will find joy again in this lifetime. Meditate. Self sooth. Do a random act of kindness for a total stranger. Know you are loved.