What happens when you go high fast. We all had headaches. These Indian people have no respect for mathematics. PC had more than a headache. He reckoned he picked up a mild chest infection from our bus driver.
Mild infections can become severe at altitude.
He went back to Delhi. I'm glad I'm not a doctor. Breda also had more serious problems. We reckon she also had some sort of chest infection. After a few days without recovering at BC she returned to Delhi also.