Yes, a bunch of smaller ones is what it usually is. I've discovered just the one I mentioned, it does bubble, makes no noise, but to this layman that doesn't seem like enough of a leak to cause what I'm seeing.
With your comments Darryl&Rita I'll tell my mechanic to pay close attention to the cab bag system. Replacing one fitting, maybe I could do that, but I am simply not equipped to do much more than that.