It's not overreacting-- a bowel impaction can be fatal very quickly. If the stool is impacted she's gong to need to go to the ER. The best thing to work quickly is a "mom bomb" which is milk of magnesia and warm prune juice. If the enemas are not working she should go get some help removing the stool. Once this is over make sure she starts using some natural means to keep her bowels moving like prune juice, apple juice, bran, and lots of fluids.
Let us know how she does.
Welcome to the board.
Rochelle