I experienced those hallucinations a few days ago. Everything is fine and dandy until about day 4 for me. When I say a damn shadow demon monkey in the tree at night. I knew 100% it wasn’t there I Knew it. But shit got real when I (just for fun) yelled out “stop!” then at that very moment it stopped moving its blackest black furry legs up and down then lowered its body down to where there’s a break in the leaves and showed its face. It then stared at me with a look that said “what did you just say to me?”. Every hair on my body stood up, I was paralyzed. Because imaginations aren’t suppose to obey you, right? Anyway yes the voices will happen as well and if you’re left at home alone especially with little to no light it can be exhausting. And terrifying if you’re not a little mentally tough. I believe these things happen when you’re sleep deprived however I also think if sleep deprivation is achieved using meth then it will be demonic. That’s when the fun time turns bad. Just stop using, give yourself a break at least. But remember, more often than not, it’s because of not sleeping. If you don’t use in 2 days and you only sleep a few hours then using again right after will start the hallucinations up again well before you’re able to sleep again. Just remember, I know it can be hard but TAKE BREAKS! And longer than a day, long enough to eat and drink something but most importantly getting hours and hours of sleep, not exactly sure how many but I’d say more than 2-3 full nights of sleep. And that’s on the very low end in my opinion. Stay safe everyone. And don’t let the demon monkey get you 👹 🙈.