I Should Explain

The "death knot" is something that has happened to me
several times and it generally precedes the death of
someone close to me. Luckily, even though I stayed
close to the phone last night just in case, I never
received a call that something had happened. So, I
presume that yesterday's stomach knot was somehow
related to the rampant flu that's sweeping through the
building at work. So far, the stomach's OK today; the
other end is something else.