Is it normal to not yawn?
Yep.Totally normal
Yes. People vary a lot in how often they yawn, and some hardly notice themselves doing it at all.
Yawning frequency varies from person to person, and you may also yawn less when you’re well-rested or simply not notice it happening. Not yawning much, by itself, usually isn’t a sign that anything is wrong.
If you’ve suddenly stopped yawning along with other new or concerning symptoms, it’s worth checking in with a healthcare professional. Otherwise, this is generally just one of those unremarkable body differences.