I moved from very dry (high altitude) Santa Fe, New Mexico to Laguna Beach for this very reason. The weather will dry out the tissues of your throat and mouth. When dry, microscopic cracks develop in these tissues and they can be the source of the blood you are describing. Also I find that the dryer the weather the more sensitive I am to spices in my foods. This is because those thousands of tiny little cracks in the soft tissues at the back of my throat hate it when a bit of lemon juice, OJ, or whatever hit them. Humid weather or a humidifier at night makes it all good again

Brian, stage 4 oral cancer survivor. OCF Founder and Director. The first responsibility of a leader is to define reality. The last is to say thank you. In between, the leader is a servant.