HI Blue!
Sounds like you've had a rough night?
There is literature on this very question. I am linking an article from Medical News Today. There are other references in actual medical journals. I thought I would link this article so it would be easier for the average reader , and/or for people having difficluties concentrating, to understand.
Hypnagogic hallucinations: Causes, symptoms, and treatment
This article touches upon how we might be able to tell the difference.
In addition, I'd think, maybe:
If the content of the nightime hallucinations are the same/similar to the daytime hallucinations, then maybe it is more likely the nightime phenomenon are hallucinations.?
It sounds like both the daytime and the nightiime experences exacerbate your anxiety? it is possible the anxiety then exacerbates the hallucinations. I am wondering if you have found some way(s) to cope with the anxiety?
It sounds like you might be experiencing an exacerbation of illness. Please be careful and do call your pdoc if you feel things are getting worse or are just too much as it is. You need to work tomorrow. I hope these experiences never cause issues with your work/employer.
I am concerned about you; yet, I know you have always done well in managing yourself in these "episodes."
Is there anything I can do to help?
Much Love