This case report details the diagnostic journey of a 22-year-old Omani male with undiagnosed FA, highlighting the value of the idiographic approach within a biopsychosocial framework. Initially presenting with psychotic symptoms, the patient underwent a comprehensive interdisciplinary evaluation, revealing neurological and psychiatric manifestations. The case, set against the backdrop of the COVID-19 pandemic, emphasizes the influence of restricted healthcare access on disease progression. This report underscores the importance of recognizing atypical presentations of FA and highlights the role of a multidisciplinary team in navigating the complexities of this rare condition.