One area of concern is your olfactory hallucinations, also known clinically as phantosmia. Phantosmia is a relatively uncommon symptom. According to Dr. Jeffrey Swanson of the Mayo Clinic, it is often associated with medical conditions such as head trauma, upper respiratory infections, temporal lobe seizures, epilepsy, sinusitis, brain tumors, Parkinson’s disease, migraines or strokes. Because phantosmia may be indicative of a physical condition, it is important to be evaluated by a physician. If you have not done so already, inform your treating psychiatrist about your olfactory symptoms. Your psychiatrist may refer you to an ear, nose and throat specialist.
It is difficult for me to comment about the situations (involving your girlfriend) in which you are convinced that you know someone and your girlfriend says that you don’t. I would need much more information about why she would say that you are incorrect when you are so convinced that you are. Either you are correct or she is correct. There is no in between.
Generally, comprehensive psychiatric treatments often involve both medication and psychosocial treatment but many utilize only one form of treatment with success. Since your goal is to eventually stop taking your psychiatric medication, I would recommend consulting a therapist. A therapist can assist you in developing psychosocial treatment responses to your symptoms. It would be unwise to simply stop your medication without having a plan to treat your symptoms. I hope that my answer helps. Please take care.