Dr. Megan Anna Neff, Autistic-ADHD Clinician of Neurodivergent Insights posted these helpful Venn diagrams that show the overlap of symptoms in Autism and other mental health issues. This amount of overlap is part of what leads to misdiagnoses. You can read the full-length articles that go with each Venn diagram here. And here is a bit more about Dr. Neff from her Patreon (which you can support her work on):

“Hi, I’m Dr. Neff. I am an autistic-ADHDer and have a doctorate in clinical psychology. I created resources and education for the neurodivergent person (Autistic and ADHD). Much of the wellness resources are not geared for us. Join me to to get Autistic-ADHD created resources for Autistic-ADHDers.”

Source: Dr. Megan Anna Neff, Autistic-ADHD Clinician of Neurodivergent Insights – Website – Support her work on Patreon!