Sonic boom maybe? nothing on USGS.
http://earthquake.usgs.gov/earthquakes/recenteqsus/Maps/US10/27.37.-100.-90.php
Sitting right here in Dallas at my computer ... no tremors. This is a pretty inactive area for that; I’m guessing what you felt was something else.
Interesting. We didn't hear a boom. I've experienced them many times, and know what they sound like.
There'd have to be some real national emergency for military jets to be breaking the sound barrier over DFW.
Nothing on USGS, huh? I'm baffled. The whole family definitely felt it.