Have any of you ever experienced these? Apparently they are hallucinations that appear to be real, but recognized as not really being real. I did a lot of research on this as I think it's what I'm experiencing...

For example.... I see things in my peripheral vision. Months ago it started as things like kids playing on the floor (in places like restaurants), or people standing next to me (at work) - but then I would look up and realize that there was no one there. Recently I've been experiencing these a lot as black bugs. They scurry about in my peripheral vision, or on my own skin, but when I look to focus on them, they're gone.

I told my doc about this at my last appointment & he shrugged it off. I was really freaked to tell him & had withheld it for a few appointments because I was afraid of telling anyone & his reaction made it feel like he was brushing it off or (worse) that he didn't believe me.

Do you know what could cause this? Anyone else have similar experiences? Help please.