Water Inhaled, Lost Breathe For A While, Feels Fine, Rattling Chest

anyways.my daughter (shes 2) was playing in the bathtub and laied on her belly to pretend swim and she inhaled a little water, she lost her breath and couldn t catch it for a couple breaths . anyways she has been fine running around and playing, but has had what sounds like fleem (she didn;t have it before) I tell her to cough and clear her throat and it goes away for about a minute and is back again. shes asleep now and has that rattle in her chest when she breaths some. Should I be worried? What should I watch for?