Wow, what an amazing thread! I have experienced reality shifts but nothing like what I have read here! Thank you so much for sharing your stories.
I read a book called Reality Shifts by Cynthia Sue Larson and she has a website too where people tell their stories, although I don't remember anything like this.
I also read a book on parallel universes written by a woman who experiences traveling between parallel dimensions. It left me wondering about many things.
It was Traveling to Parallel Universes by Trish LeSage.
My experiences amount to things disappearing or appearing for the most part.
I got chills several times while reading your stories Lulu and Nebulous! I think both of you explained them very well. Thanks again for sharing!