Can memories of me be forgotten? How do I cope?

My mother has never been diagnosed with any type of memory disorders, and had almost thought the doctor had overlooked something, but then realized that her memory is sharp as a tack when she speaks to someone about the past. Her past, my brothers, her brothers, sister, momma, daddy, old friends, jobs she's had, my dad, trips she's taken, songs, etc. You get the idea.

My thing is. She has no memories of her and I. None.

I ask her for one memory, just one, she just stared at me with a blank look on her face.

Needless to say I am devastated. We have gone on so many trips together across country. We've done so much together. I have wonderful memories and she has none. I have been erased from her mind.

I'm confused as to how this could happen, I'm angry that I have given up my life to make sure she is taken care of, I quit my job a year ago to move home and be her caregiver. She is 95 years young but still able to get around as well as expected.

I'm her only daughter and the baby of the family. My brothers are no help. So its basicly just me to keep this house running smoothly. And trust me it ain't easy.

But I would think out of anyone else on this earth, I would be the last person she would forget.

Someone out there please tell me you've gone thru this and tell me how do I cope with 58yrs of memories being forgotten. How do I get thru the anger of feeling like I've been erased.