Yea, that's a good point.
I guess you're right about bb's example; the feeling of time passing is subjective; so I guess if you that dream you aren't feeling the passage of time, you really aren't feeling the passage of time. Time is often distorted in dreams, so why not all the way to no time at all?
I think so. It's just a feeling that time doesn't exist. It doesn't make sense (to me, anyway) to say that one could have an illusion that one was having that feeling. Feelings are real, so they're not illusions.
I don't know about my split-consciousness example. It seems like it could go either way. It's not really a "feeling". But it is something subjective. If I feel as if I have two consciousnesses, do I have two consciousnesses by definition? I guess so.
Right. It's more than just a feeling. So I'm less sure of that one. Don't think it makes sense to say that one can have the illusion of having a feeling or an emotion. You either have the feeling (or emotion) or not. But one might be convinced that two consciousnesses were existing simultaneously in their mind without actually having two consciousnesses existing simultaneously. So maybe that could be an illusion.
Love those old SNL routines!