Diagnosed

I'm not just making an inference based on something some fucking YouTube slime said when it comes to my diagnosis.

Hym "I was diagnosed with ADD. By a shrink. AND TREATED. Somewhere there IS a record of that diagnosis and Dr. Adewale Gadebo offered to renew my prescription on the basis of that previous treatment. What I do not need is your bullshit therapy. Or behavioral change. I could use some antibiotics (small pills please), novacane, and some pliers... And some booty. But beyond that... I could also use some Adderall. A car so I don't have to walk in the lethally cold weather. Some pure tea tree oil. A dermatologist. All of this I need more than behavioral change."

armchair diagnose

Armchair diagnoses is telling/diagnosing someone they have a mental disorder of some sort. Usually done by an armchair therapist

A: Janice told me I have ADHD because I shake my legs a lot, is that real?
B: That's an armchair diagnose, don't trust her

diagnose with dead

i see you've jumped off a building. i guess now you are dead.

i diagnose you with dead (present tense for diagnose with dead)