I am largely paranoid as well. That people are following me, watching me, laughing at me, reading my mind, etc. But I am officially diagnosed with Schizoaffective disorder, a combination of Schizophrenia and a mood disorder. I would have a chat with my doctor or a psychiatrist if possible, if I were you. They can help figure out what's causing your paranoia, and treat it, if necessary.
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AQ: 39 ---- RAADS-R: 187.0
Nonverbal Learning Disorder; diagnosed September 2010
Schizoaffective disorder; diagnosed December 2012
ASD/Asperger's Syndrome traits; diagnosed August 2014
IQ 120
(Diagnosed using the DSM-IV, not DSM-5)