windows all bowed in simultaneously, sound, ears popping almost in pain

When I was a child my dad was at the dining room table and we heard a strange noise, then our ears all felt unbelievable pressure.  The sliding glass door (glass) he was sitting in front of suddenly bowed in like it was made of liquid... so did the rest of the windows including the 12 foot picture windows to his right.  Almost like we entered a giant 'pressure bubble' and the whole house was going to implode.  Sound could have been from outside the house, but not sure.   My parents don't like to talk about it because they cant explain it.  I remember it like it was yesterday.  My mom and I have talked about it briefly and she thinks it may have been an experimental government aircraft.  Anyone have a clue?
We suspect that date is approximate, even though the witness does not indicate that fact.  PD