/r9k/ - ROBOT9999

I keep hearing things that aren't there, its really getting on my nerves, one time I heard an elephant outside my house evendoe I live in the USA and it was really strange. another time I heard a dog barking outside the class while I was at school and once when I was trying to sleep I heard tribal African drums beating from inside my walls. these are the random occurrences I can think of but there are common minor ones too, like hearing snakes whenever I'm outside and hearing my phone go off when I didn't really get any notifications, I also hear people calling my name when I try to sleep sometimes and its getting quite annoying. I don't think I'm schizo, I never see stuff that isn't there (except one time I was high on niggerweed and thought I saw a dinosaur in my neighbor's house) but I hear things like this a lot and sometimes I get really paranoid as if someone is behind me breathing on my back when there's no one there. thoughts? how do I get this to stop?