Hallucinations? Help!?

Okay so I'm thirteen and I think I'm hallucinating but I just want a sure answer. I've been seeing a lot of “roaches” lately, even white (Albino) giant ones I've never seen before. I've also been hearing things, not voices or anything haunted just like buzzes from a bee or fly going an inch apart from ear but them not being there. Last night, I also saw a shadow, just a millisecond bring there but it kind of freaked me out. Am I hallucinating and if I am what do I do? Thank you