am i hallucinating?

so within recent months (~3 months), I’ve been seeing mice run where they shouldn’t. The best example i have is from when I was sitting at my desk, my laptop and basket were around 6 inches from each other, and i kept seeing these mice (that were too tiny to even be a baby mouse) run between the area. I was severely sleep deprived when i first started seeing them, but now (even as I’ve fixed my schedule and am not deprived anymore) I see them occasionally, even though my house is not infested.

another visual thing is that i’ll see people/figures behind me, in corners, doorways, etc. and I have no idea if I’m hallucinating or not when i see these because they happen all the time in all sorts of places.

I’ve also experience weird feelings, as if someone is touching me, or that bugs are crawling on/in me. These happen more often (no sleep deprivation, stress, anxiety, etc.).

I also have a therapist, but i haven’t brought these experiences up to her yet. I’m nervous and i don’t see her till August, but these experiences have been freaking me out.