Definitions for "Unwell"
Not well; indisposed; not in good health; somewhat ill; ailing.
Specifically, ill from menstruation; affected with, or having, catamenial; menstruant.
undergoing menstruation
Keywords:  matchbox, rob, singer, thomas, album
Unwell is the second single from Matchbox Twenty's third album, More Than You Think You Are. It was written by Matchbox Twenty lead singer Rob Thomas. It was very successful on the radio, and spent 20 weeks at the top of the U.S.