Symptoms / History:
Teenage girl with recurrent and frequent episodes of continuous symptoms of severe headache, nausea, vomiting, and occasional stomach and abdominal pain, and blurry vision, usually with no fever, for a period of nearly 5 years. Her mother and brother have some similar symptoms over the same period.
Physician's Differential Diagnosis:
"My impression is that Jane has a history of headache, chest pain and vomiting. She also has a history of being on Zantac for 2 weeks with no improvement.
The differential diagnosis includes possible (according to the physician):
Conclusion:
A propane-fueled boiler in the girl's basement was found to be leaking very high concentrations of carbon monoxide.