I went on my first multi-night winter hike last week. My lungs and breathing felt great! However, after being back indoors for a few days, I developed an annoying "lump" in my throat and it was kinda sore. It's the kind of lump that makes you want to swallow all the time because it feels like something is in your throat.
Is there anything to the idea that the difference in temperature and humidity would cause this? Or should I be looking elsewhere for causes?

