Kahneman puts it similarly in Thinking Fast And Slow -- he describes "two selves" -- the experiencing self, and the remembering self.
Please elaborate. My immediate reaction is Occam's Razor makes the idea of multiple distinct selves pretty unlikely. But then I think maybe you're defining self differently than I would, and it's certain that the brain and mind have a certain amount of modularity. Even if our self can be divided into several functioning parts, and even if we are using/ experiencing some part stronger than others, that doesn't seem to be evidence of multiple individual selves. Even when you have modularity that results in some weird behavior, that doesn't suggest multiple s...
http://www.smbc-comics.com/index.php?db=comics&id=2705
Addresses questions like "If I don't remember, but it definitely happened... who suffered?" in a rather non-obvious way (non-obvious to me, anyway).