We were in bed by 10, but up several times to pee as Diamox has a diuretic effect. Then we had banging on the door at 330 and it was Trevor saying Orvar was not well. He had gone down to the bike to get water and was dizzy. We woke the guides and they got some O2 from the car. Sara went in to assess him. He did not have altitude sickness, but more of the same general fatigue and poor nutrition. While she was there Trevor started vomiting. Now this is something to worry about as he clearly has altitude sickness. Sara started them both on Diamox anyway and we all tried to get some sleep. Orvar has lost a lot of weight and is not taking care of himself, but he does not appear to have Altitude sickness at least. Trevor was nauseated and had a headache in the morning and he bought an O2 travel bag and some nasal tubing. After sucking back one bag he felt pretty good and the hotel filled it up again for him to take for tonight.