I AM CURRENTLY EXPERIENCING SOME SYMPTONS ASSOCIATED WITH PANIC DISORDER

I AM CURRENTLY EXPERIENCING SOME SYMPTONS ASSOCIATED WITH PANIC DISORDER AFTER EXPERIENCING DEATH OF MY HUSBAND. I WAS TAKING LOREZAPAM AND SLEEPING ALL NIGHT AND FEELING OK IN THE AM. NOW I WAKE UP IN THE MIDDLE OF THE NIGHT WITH SOME SYMPTONS OF PANIC. MY NURSE PRACTIONER WILL NOT GIVE ME MORE THAN TWO LORAZEPAM A DAY SO I SAVE ONE OF THEM TO TAKE IN THE AM. WOULD IT BE DANGEROUS TO TAKE AN EXCEDRIN PM IN THE MIDDLE OF THE NIGHT TO GO BACK TO SLEEP AND AVOID PANIC? I TAIKE LEXAPRO 25 MIL AND NP WILL NOT GO OVER THIS DOSAGE WHICH I HAVE BEEN TAKING SINCE 1999.