Dude I have the same fear I know it suck like every day I think I hear something but it's just the wind or the noise the tires make when ur I the car message me so we can talk if you want
Why do u think u have this fear, do u have a family history of schizophrenia? The fact that u are under medical care and have been diagnosed should be a great relief to u and I can honestly tell you that anxiety and panic attacks does not cause Schizophrenia. If ur doctoir showed u a chart of all the levels and kinds of mental illness u will find that anxiety and panic disorder is a neurotic illness at the beginning of the spectrum and then Schizophrenia is right at the other end under severe pychotic illness. There is a massive gap in between where so many other mental illnesses are. Ranging from personailty disorders to bi-polar to borderline....
If your mental health team have told u it is anxiety I would trust them on this but maybne u should discuss increasing ur medication as u are clearly still anxious and it is causing u distress. What medications are u taking, anti-d's, benzo's? My advice would be to discuss this further so appropriate care and take place and don't let them fob u off, demand they do something. Cause in my experience with doctors they listen and say they'll help and then ur waiting for months before action is taken, so stand ur ground.
Good-luck