Maybe fighter planes` sonic booms? USA has 2308 of them http://www.globalfirepower.com/aircraft-total-fighters.asp
Even in poor Poland (with 99 fighters) they are training in every good weather (and also often in bad) and sometimes window-shaking sonic booms are heard.
If after boom a jet noise is heard, then there are fighter jets. If not… that must be something else and maybe paranormal. I heard one time very loud boom without any jet noise remaining and no contrails were visible on the sky. It was in 2009 or 2010.