My mom had a super memory... Then her dad passed away and i noticed she was forgetful at times. 3 months later my eldest brother was murdered and she forgot things that happened a while ago. A few months after that, my dad passed away from a heart attack... BAM her memory's completely shot to hell. She forgets what you told her 15 minutes before,PLUS longterm memory's diminished. She's never had ANY type of medical/proffessional help relating to all the trauma she experienced that year. And it seems to just be getting worse. So yes, stress can wreak havoc with your memory...