You apparently are suffering from multiple problems. Emetophobia is the fear of vomiting. Misophonia is a hatred of a particular sound (often chewing, coughing, breathing, etc.). And you’ve been diagnosed with a psychotic disorder as well as obsessive-compulsive disorder. That makes you a very, very complicated patient to treat.
This is a terrible burden for you to manage on your own. I’m glad you are seeing a prescriber for medications. That’s a positive way to start. But I hope you are also seeing a psychologist to talk through your feelings and to help you learn to cope with what may be neurological disorders. A cure may not be possible but coping certainly is.
I wonder if a treatment that includes a distraction technique might help you manage being with other people. Techniques such as EMDR (Eye Movement Desensitization and Reprocessing) or self-hypnosis might give you some relief. Do talk it over with your mental health provider.
I wish you well.