Hi, I am a male, 27 years old. I woke up this morning with my throat bothering me. not as much sore but feeling swollen and a little phlegm. within the past few hours since i felt a little nauseous, a little cough, nose slightly stuffy, and feeling drowsy. I did return home from a flight out of town yesterday as well. Is it something i may have caught on the flight or perhaps some seasonal allergies? - Thanks