Marijuana and Racing Thoughts

I have OCD and sometimes when I smoke alone, in the first half hour or so I get fast, panic-y thoughts that can cause some very unsettling anxiety and makes me not want to smoke alone. One thing I obsess over is schizophrenia, I have an extreme fear of getting it and when I smoke alone, I start freaking out that I am hearing things and thoughts like "I am hearing voices?". I never do but being super high and alone I often convince or basically imagine I am hearing voices. If I calm down and do something else I am completely fine, although. Furthermore I have never actually heard voices SAY things to me, but when I am in this racing thought, panic state I often think I am hearing something like a TV is on in the background of my brain, and I feel like I hear mumbling. I am just worried this is a sign of schizophrenia, which like I said I fucking fear greatly. Before I started to get an OCD-like obsession over schizophrenia, I never had any issues like this smoking, also, I have no one in my family with it. Does this sound normal to you guys? To convince yourself of symptoms, in a type of hypochondriac way.. Anyways, any input would be apprecitated! Thanks!