What does it say about medicine? I am not medical professional, but I have never considered the two illnesses to be that related. Do you think anxiety and depr

What does it say about medicine? I am not medical professional, but I have never considered the two illnesses to be that related. Do you think anxiety and depression should be classified as one disorder? How about bipolar and depression? Bipolar I with Psychotic Features and Schizophrenia? Do the treatments for ADHD help Autism, because if not, I'd argue they are not that similar?