To know if you might be autistic, you can start by looking for common signs and traits of autism which can vary but often include difficulties with social communication, repetitive behaviors, intense interests, and sensory sensitivities. Many people also find it helpful to take self-screening tools like the Autism Spectrum Quotient (AQ) test, which is a questionnaire designed to measure autistic traits in adolescents and adults. However, a formal diagnosis requires an assessment by a healthcare professional who will observe and evaluate your development, behaviors, and communication patterns in depth. If you notice signs such as difficulties in understanding social cues, anxiety in social situations, repetitive behaviors, strong preferences for routines, or sensory sensitivities, it can be useful to discuss these with a general practitioner who can refer you to a specialist for a detailed evaluation. The diagnostic process typically involves developmental history, behavioral assessments, and sometimes input from specialists like psychologists, speech therapists, or occupational therapists. Ultimately, only a qualified professional can provide a diagnosis, but self-assessment tools and awareness of common signs can guide you on whether to seek an evaluation.