Is this spiritual or should i see a doctor?

Lately ive been experiencing some weird things. I keep hearing people whisper my name in my ear, and i keep seeing sihlouettes of people who arent really there. Im also really really paranoid all the time that people are talking about me and looking at me. And i also keep doing weird things like thinking theres something like food on my face, or theres something hanging from my nose, but there never actually is. And when i walk down the street i get the feeling someones trying to make me fall over. I have had experiences with the spiritual world before but never anything at all like this, so i dont know if it really is something spritual or if i might need some kind of mental help and i should see a doctor. Any thoughts?