I am 26. when I breath in cold air especially during sleeping my pipe will be dry. To day when I started deep breathing I felt pain over my trachea at the beginning sternum area. For the past two months I am also suffering from bad breath and I have tried to clean my teeth but no improvement even when my mouth is closed people smell something bad.
Hello rearward welcome to Chat Doctor.come have evaluated your query thoroughly.* This is in relation with oral cavity infection most likely.  Recommended consulting expert oral surgeon and dentist.* Till then gargles with salted lukewarm water added peppermint oil 3 time a day would help great.* Maintain HY Chat Doctor.