anxiety
"This stuff was the pits.  A half hour after I took my first pill, I was falling asleep.  The tiredness became extremely intense.  I had to cancel my plans for the evening and lay down.  I was so crazy exhausted that I became anxious.  I asked my prescriber for antianxiety medication.  I have mild anxiety that makes me uncomfortable. This stuff just made me worse than a couch potato.  Several hours later I got intestinal cramps.  Then I started throwing up. "