strep throat
"Good lord, awful, the worst experience I've ever had with a drug.  2 things. 1, my mouth tastes like I've just eaten a meal of tin cans and aluminum foil. A truly vile taste that cannot be fully appreciated until experienced.  Two, and this is a minor point-I feel like I'm going INSANE.  This from someone with no mental health issues.  Beware night time, it is a chamber of horrors.  Hallucinations, bizarre dreams, inability to think rationally, the gnawing feeling that your brain is being invaded by little green ewoks with sharp teeth.  

If it was just the bad taste, I'd probably power though to the end of the script, but I've done 2 grisly nights on this s***, and there's no way I'm making it though 5 more. Back to the doc."