Our girls seem to have contracted a pretty serious case of schoolitis. The symptoms include, but are not limited to, stomachachs, sore arm, sore throat, hurt toe, general malaise, contrariness, constant whining, sibling torture, irrationality in the face of obviousness, hunger, thirst, inability to sleep and/or stay asleep, random bouts of screaming, and memory loss for already-mastered skills like, say, keeping food in their mouths or water in the tub.
This malady spreads to other members of the family and results in a common ailment known as Momitis. The only known cure is a spa day. Daditis can result as well but is less common and can be cured with beer and football.