A 16-year-old girl in California saw a flying green dinosaur. It was not really there. She also heard voices telling her to hurt other people. At hospital, she was shaking and breathing fast. Her heart was beating fast too.
Doctors found a rare illness. Her body's own defences attacked her nerves and caused swelling. She received medicines to calm this attack. Doctors also used a machine to clean her blood. This helped remove substances behind the attack.
She left hospital after almost two months. Her symptoms improved over the next year. She stopped taking medicines for the voices and other mental health problems. She continued treatment to control her body's defences.
