Director while narrating the story to the lead character be like : nothing to do , just inhale and exhale throughout the movie, but with your mouth yaa not with nose .
If someone is panicking, that kind of breathing is acceptable. Wheather she's happy, sad , scared, whatever be the emotion ...she was just kept on giving those irritating breathing sounds. Enough of mouth yoga ( inhale and exhale) . Even my asthmatic grandpa has smooth breathing sounds .