Welcome to the PNF Wisp. Thank you for sharing your experiences with us too.
You have been posting with one of the most appropriate persons available. Charleh can explain a lot about shadows, demons, and related interactions with humans.
I’ve not had any demon-like experiences. So I’ll just read what you two have to say.
I’m psychic and experience telepathic and empathic communications and premonitions. Though those might not exactly fit in with your own stories, I share that to make a point about hallucination inducing materials. I used to seriously abuse drugs and alcohol together when I was a teenager. By age 16, I started hearing and/or thinking other peoples’ thoughts. It is a common question on this form to be asked, “With what I am experiencing, could it be I’m going crazy?” To ensure the substance abuse wasn’t messing with my mine, I gave it all up. The psychic occurrences continued.
Good news is that it wasn’t the chemicals causing me to image those events. Great news, I drink wine again now .
By the way, my refrigerator- which is positioned about 20 feet behind my chair in the family room - makes a lot of odd noises. Yesterday in fact I asked my GF if one of our pets was choking? She pointed at the fridge. So a growling sound would not be out of the realm of others sounds I might expect too.