The mean reds

In Truman Capote's Breakfast at Tiffany's, Holly Golightly talks of having the mean reds, which are much worse than the blues.  (At least she does in the movie; I've never read the book).  I think anyone who has to live through 100-plus degree heat day after day is well on their way to experiencing the mean reds.  I know I have them right now, and no matter how hard I try to think positively, I just keep sinking back down into them.  It's not a fun place to be.