I fear that everyone I have ever known has forgotten I exist

I know this will sound morbid, or something but it’s just all thoughts in my head.
I often wonder what the world would be like if I wasn't here. Like would people remember me or would I just be a lost face in the pages of someone’s memories.
Sometimes I get the feeling that I’m already lost to everyone I know.
It feels like everyone is changing and I am still the same; the same girl I always was and probably always will be. Like I am trapped in some time warp. Like I can't escape...I know I could, but I just don't know how. I think deep down I have always felt that way. Like I desperately need someone’s attention to stay alive.
I know there are people that love me; it just sometimes would be nice if people would give you a call just to say 'Hey how are ya?' You know?
I wonder what it would be like if I suddenly disappeared from the face of the planet, would people wish they would have picked up that phone, just to say hey. Or would they be like, ‘Gee something’s missing, oh well.’ I want to be remembered, not to be forgotten, like I'm sure everyone does. I just fear that maybe I already am.