Well, I've had a lower level of energy lately, the last couple of weeks. I have been urinating, what seems to be every 5 minutes. I've had headaches and feel nauseous every once in a while. I'm not sleeping through the night, i usually ave to get up 2-3 times to use the bathroom. My appetite has lessened and I cannot eat a whole plate of food. A lot of people have suggested pregnancy...I am on birth control. What is wrong with me?