The user posted that for a few days she felt the need to yawn or take a deep breath every few minutes.. She felt the same urge throughout the day, whether she was tired or not. She wasn't particularly stressed about anything. But she had had a similar episode earlier in the year, which lasted for about two months.
This is a companion discussion topic for the original article at https://patient.info/news-and-features/what-your-constant-yawning-could-mean