I think the nose warms air as one of its functions. I've been trying to breathe in through the nose running, and breathe out through the mouth (at least in the

I think the nose warms air as one of its functions. I've been trying to breathe in through the nose running, and breathe out through the mouth (at least in the winter when there's more than just air that would be released from the nose otherwise). I find that my nose hurts because the air feels cold and I start to feel inflammation - this happens indoors as well. This is separate from the capacity issue, and feels like my body telling me not to do that anymore. When I was a small child I had an operation in my nose that did something - that my mom doesn't remember. To this day I imagine they removed or fixed something and no one knows what they removed or did, I woke up in a recovery room with my nose bleeding (inpatient procedure). I had terrible allergies as a kid.