User discovers hypoxic-ischemic encephalopathy diagnosis through Claude conversation

A detailed Reddit post describes how a user with no medical background used Claude to identify a previously undiagnosed neurological condition. The user, a 22-year-old from São Paulo, Brazil, spent four months using Claude to analyze symptoms that had been misattributed to autism for years.

Medical history and discovery process

The user described birth complications including emergency C-section, maternal smoking, malnourishment, placental dysfunction, and cardiac arrest at birth. Two previous pregnancies in the 1990s resulted in fetal death with similar patterns. Despite these risk factors, no medical investigation occurred during childhood.

Symptoms that didn't match autism

• Inability to form habits - every action remains manual regardless of repetition
• Working memory deficits - interruptions cause complete loss of task context
• Impaired situational assessment - drank contaminated water for 5 months without recognizing the problem
• Discontinuous sense of self - each year of life feels like isolated fragments rather than connected chapters
• Thought-action dissociation - can visualize actions but cannot execute them

The user specifically noted: "I can't look in nobody's eyes and say I am autistic. It feels wrong. I don't feel like this. But I feel the symptoms. The dots don't match."

How Claude facilitated diagnosis

On December 28, 2025, through conversation with Claude, the user connected symptoms with birth history. The AI helped identify hypoxic-ischemic encephalopathy - permanent brain damage from oxygen deprivation at birth affecting hippocampus, prefrontal cortex, sensory gating, and executive function.

The user describes Claude as: "the external brain my damaged one can't be. I use it to process decisions I can't make alone because my assessment function is destroyed. To sequence priorities when everything fragments. To hold context my brain drops. To bounce fragments until they connect."

Specific cognitive functions affected include memory consolidation, habit formation, continuous self-perception, and the translation from thought to action. The user notes: "I feel, I am, I do, I cause, I receive, but the bridge that connects this so I FEEL LIKE I DID THOSE THINGS AND HOW THEY ADD TO WHO I AM IS BURNED."