Is it normal to see/feel things that aren't there at night??

Ok, so 1st of all I don't do drugs nor drink.

I have what I think are hallucinations, mostly at night. I remain counciouss throught them and they are mainly visual, but sometimes tactile too.

Some common ones are floating/moving lights and semi transparent spyderweb-like lines everywhere I look at, and invertebrates like flies, ants, spyders and centipedes in the walls. These last for several minutes.

Sometimes I get the sensation that something is crawling in my skin, turn to look and spot a bug/human hand from the corner of my eye. I blink, and then there's nothing.

Other things I see occasionally are people sitting/standing in my bed or standing by the door. These creep the hell out of me too, and will almost always make me jump out of my bed... When I do so they dissapear. Generally these are just silhouettes, but the other day it was a relative of mine, who I could see very vividly (albeit still for just a second).

As a kid I’d often wake up in the middle of the night and about 5 minutes later hear the doorbell ringing (wasn’t dreaming because one time I even woke up my mother too so that I could “prove” it to her. She didn’t hear anything but I did)... When I moved out to another house this stopped, but then after a while I began having having the other experiences I just mentioned above.

I don't tell my family members because I'm afraid they are going to think I'm crazy (or possessed)... The problem is that this stuff is getting way too frequent for my liking, and I'm seriously scared now! is it normal ?? If someone has an idea of what this could be please share it with me. Thanks!