Activity: Day#1–9 hour flight, arriving with severe headache that strong but OTC meds won't touch; Days #2, #3–needing to visit restroom often, feeling like might throw up, but didn't. Day #4–fly back, not sleeping well
Symptoms: Day #1–severe "knife-like" sinus pain, which "reduces marginally over the next few days; Day #5–throwing up blood, first bright red, then darker; Day#6–blood in throat and nose.
Severe headache much better, still head feels "queasy"