ChatGPT Helps Woman Get Diagnosis After Years of Dismissal

When Phoebe Tesoriero fell down the stairs and temporarily lost the ability to walk, doctors told her it was anxiety. She knew something else was terribly wrong.

For years, the Welsh woman watched her body betray her. Severe seizures struck without warning. Her legs grew weaker until walking became impossible. She lost sensation from the chest down and suffered from double incontinence.

Despite returning to emergency rooms repeatedly, medical professionals in Cardiff dismissed her symptoms as mental health issues. One hospital even sent her home with a written warning that future visits would result in treatment strictly as a psychiatric patient.

Her health crisis began in childhood with walking difficulties. Doctors blamed her missing left hip socket and performed bone grafts, but her balance problems never improved. By 2022, she received an epilepsy diagnosis after collapsing at work, yet treatments did nothing to slow her decline.

In early 2025, a massive seizure left her in a coma for 48 hours. When she woke up, doctors again pointed to anxiety as the cause.

Exhausted from being ignored, Tesoriero tried something different. She opened ChatGPT and typed in every symptom: locked ankles, absent reflexes, progressive paralysis, hair loss, incontinence. The AI chatbot suggested several possibilities, but one jumped out at her: hereditary spastic paraplegia.

She took the information to her general practitioner and requested genetic testing. The results confirmed she has a complex quadriplegic form of HSP, a rare inherited disorder that causes progressive muscle weakness and stiffness. Specialists believe a severe MRSA infection she contracted as a baby mutated the gene that later triggered her condition.

The Ripple Effect

Tesoriero's experience reflects a massive shift in how people navigate healthcare. A 2026 Gallup poll found that 25% of people now use AI for medical advice, with nearly 70% of young adults researching symptoms online before seeing doctors.

Her determination to be heard is also inspiring change in how medical professionals view patient research. Dr. Rebeccah Tomlinson, a Cardiff GP, told the BBC that patients arriving with their own findings can help guide difficult diagnostic conversations, especially as healthcare systems face overwhelming pressure.

Now using a wheelchair full time, Tesoriero has shifted her focus to pursuing a master's degree in psychology. Her sister launched a fundraiser to purchase a specialized wheelchair that will support her spine and help preserve her remaining independence.

Her journey proves that being your own advocate can be lifesaving.