I don't yawn much at all, but sometimes (usually in bed) I do get an uncomfortable urge to have deep yawns. It is frustrating because most of the yawns feel uns

I don't yawn much at all, but sometimes (usually in bed) I do get an uncomfortable urge to have deep yawns. It is frustrating because most of the yawns feel unsatisfying, like I didn't get a deep enough breath with the yawn. It feels as if there is some tension around my lungs or diaphragm. After about 10-20 minutes of this and consciously trying to relax these muscles, I may get in a couple of big satisfying yawns, but it takes a while to get to that point.