When I was 67 (?), I had a left hemisphere brain stroke.. it left me brain damaged... I can remember 1955-2017, but not last week, No short term memory... I developed "Night Terrors' I used to sleep on the floor of my roommate's bedroom... I Bought a dog, I am in my own bed, we snuggle... I do not wake up screaming... Have you had a life changing event?