Exactly! The illusion argument (let us call it ArgIllusionCons) that applies to consciousness can be applied with just a few extra steps to everything we perceive, including ArgIllusionCons itself.
Perhaps, but there's no guarantee that it's anything more than a transient state, that lasts at most until you next lose consciousness. The consciousness that you have today may have no relation to that of yesterday or tomorrow, apart from running on the same brain "hardware" and having access to the same memories.