My problem is the opposite. I have very low blood pressure that keeping awake is such a drain on my body. I've been eating lots of blood-pressure inducing foods, but there doesn't seem to be much of a difference.

My friends jokingly told me it's because I've been using up all the energy to fuel my daily dreams that can last up to a century. Imagine that, burning fat by sleeping.

Anyhow, it sounds like phantom illness. In short, you are probably under depression or pressure and that changes the condition of your body. For example, working hard day and night and feeling your body go up in high fever, but when you go to see the doctor, the fever is gone and you can't get a medical leave since there is nothing wrong with your body. It doesn't mean the illness doesn't exist, it simply means the illness disappear the moment you're out of the situation where the illness can manifest.

Anyhow, I'd say get plenty of rest and sleep. Heck, I probably have low blood pressure because I sleep too much. I can't help it, my dreams are too awesome. Just the other day I dreamed of being in an incestuous lesbian relationship with two beautiful big sisters with big tits. For the record, they're not my sisters in this world.