Actually that happens to me a lot. I'll read something and as soon as I'm done with the sentence I have completely forgotten the contents and the meaning behind it. Or like I can understand the words and even the context but I dont process it or something like they are just words on a page that have no relation to one another... Hard to explain. Also in conversations I have to have ppl either repeat them selves cause I will get hung up on something the said or a gesture they made and wonder at the deeper meaning behind it or what they were thinking instead of what they were saying or get so completely lost in my own thoughts that I miss the rest of the conversation. Even watching movies or listening to songs.