Why can't I turn it off?

I seem to always be on. Thinking, doing, planning. It is sooo hard for me to just sit, relax, enjoy, stop. I wouldn't call this a bad trait. I think that being on, is sign of drive and intelligence. But it can be tough on those you love. My son wonders why he gets on my nerves so easily, and my husband thinks that I am always mad at him. I'm just....busy. Not good huh? We are going away for the weekend...maybe that will help?