Might as well ask it here, since goolgling this leads me down the hypochondriac nuts hole.

I've noticed I yawn ALOT. Furthremore when I yawning I feel like only 1 out 5 yawns are "proper complete" yawns that actually get enough air in (that's the best way I can explain).

I was thinking this might be a sign my nose is too stuffed normally and I'm not getting enough oxygen, but reading this thread I might be over oxygenating?

Some extra information, I've noticed this a while but I have been exercising a lot lately, and lost about 20 pounds, so I do feel relatively healthy and active.