not exactly the same. firecrackers bother me a lot and cause anxiety. but i can relate in that when i was a child my parents had this burglar alarm installed that would often go off by mistake late at night or early in the morning. i was terrified of the loud noise it would make. i would cover myself with my blanket and cover my ears until my dad would turn it off.
i get very agitated now when people are partying outside late into the night down the hill from our house. the best defense i have found is white noise in the form of a fan blowing or the air conditioner on. or the tv, radio, or music to drown it out and be a distraction.
hugs.