Late night Phone Calls

I called in. Left a message on my supervisor's voice mail. Feel pretty damn shitty about it, but what can one do. There's no way I can make it at my desk all day feeling like this and on about two hours of sleep. I'll take a day to rest and (hopefully) write. So now I can stay up and read for a while and not worry about getting up at 6:30 while my stomach bubbles and burns. I'd much rather be at work than feeling like this.