From Galen Strawson's new book, Selves: An Essay in Revisionary Metaphysics (per Thomas Nagel):
When I consider myself in the whole-human-being way I fully endorse the conventional view that there is in my case – that I am – a single subject of experience – a person – with long-term diachronic continuity. But when I experience myself as an inner mental subject and consider the detailed character of conscious experience, my feeling is that I am – that the thing that I most essentially am is – continually completely new.
I'm with Strawson.
So am I.