I was fine yesterday until later in the evening when I began to cough non-stop. Mucus is yellowish and very thick. I went out yesterday is was about 8 Celcius or 40 Fahrenheit, but sunny, and I was bundled up; however, I was breathing in the cold air. No fever no aches, except for the pain after coughing non-stop for 5 minutes. I still have my tonsils as an adult but they are not sore.