A Very Crabby Jessie

I'm not sure what has happened, but Jess is so crabby lately.  She yells, screams, and refuses to do things we ask her to do.  Not only to me, but to Debbie and Rachel.  It doesn't make for a very nice day.  This morning was the worst.  The afternoon was better.  I just wish she could tell me what is bothering her.  It's like a guessing game.  I don't like it.