Beware the Gap: Horror

It was the blank that worried her. It was a small thing at first, she thought, because she could remember remembering things surrounding it, but the blank grew, and that worried her more. She could, if she was clever, skirt around it by remembering herself remembering the blank, and she could write down the memories and hide them and find them later, but the original memory--was gone. IT was strange, remembering herself remembering a void. She developed all kinds of tricks to deal with it, and she had to use them faster and faster as the gap grew. Bad enough that the gap grew for herself, but she was sure it was a medical problem and that her doctor would be able to solve it, give her a medication or an operation or some cognitive therapy that would fix it all. She grew really scared only when she realized that others there had a gap, too.

Inspiration: Having a blank page to fill.
Story Potential: High.
Notes: Don't we all fear forgetting? This could be strong. Some nice Steven King/John Wyndham-style of story.