See: GO INTO A TAIL SPIN.
{v. phr.}, {informal} To fall or go down badly; collapse; give up trying. * /The team went into a tailspin after their captain was hurt, and they were badly beaten./ 2. {informal} To become very anxious, confused, or mentally sick; give up hope. * /The man went into a tailspin after his wife died and he never got over it./