Thinking of self diagnosing yourself with ASD? Already self diagnosed? Do you have imposter syndrome? Here's what I found about why I think my childhood symptoms and adult symptoms justify my self diagnosis and why I have also doubted it. Autism has a lot of traits as other conditions, such as borderline personality disorder, bipolar disorder, and Complex Post Traumatic Stress Disorder. How can you know your self diagnosis is the right one if the healthcare system, with the 'professionals,' can't figure it out for you? It's all in the DSM-5, childhood history, and current state of mind, and knowing about the other conditions and whether or not they fit you.