If the outside receptacles are working, then the problem isn’t the breaker, if they truly are on the same circuit. You probably have a loose/broken connection, either at one of the outside recepts, or one of the bath recepts, or a broken wire in between.
Turn off the breaker and check the connections at the receptacles.
Also, consider running a new circuit to either the baths or the outside recepts. Bath receptacles aren’t supposed to be shared with other receptacles.
Just because you can, doesn't always mean you should