When a person has two different diagnoses, and both are correct, they are “comorbid”. It’s very common. My primary diagnosis is Bipolar 1 disorder. But I have comorbid ADHD. The two are connected, I’m assuming at the genetic level. Turns out that ADHD is far more common in bipolar the population than in the general population. I’ve never read up on the OCD ADHD connection. Sounds real.