I don't know what's happening to me today, but I just can't stop yawning. It's only noon, but I feel so tired. Yawning comes in waves and completely overwhelms me. My mouth opens wide, with a loud sigh. My eyes close and my nostrils widen as I take a deep breath yawning. This brings tears to my eyes and I shake my head, indulging. It is impossible to resist. When my mouth is wide open, sucking in the air strongly, you can see the inside of my mouth. You can see the wide-open throat, the moving uvula, and my tongue. This yawn is loud and unstoppable.