Hi Beelze

I had yawning fits earlier on in my recovery too. It was very strange, I could not stop it. I also felt as if I could not get enough air into my lungs no matter how deeply I breathed. I'm sorry, I don't have an explanation for the yawning fits, but I just chalked it off as another one of those weird things that comes with PCS and hoped it would eventually go away, which it did. I haven't had that happen in several months.

I also think one thing may have helped. I realized at some point in my recovery that my sinuses were constantly blocked even though my nose seemed like it was clear. It wasn't until I went in for lymph drainage therapy and she did some work on my nose and face that I realized how blocked my breathing was. After she cleared my nose and sinuses, it was like I could breath again. After that I no longer had that feeling of not getting enough air, and the yawning subsided a while after.

Maybe you could try a home remedy for sinus clearing? Not sure, but just a suggestion.

Take care.