Hello. I am a 21 year old in the military, I have had a thick mucus (yellow and now white and clear) issue for about 4 weeks. Along with the mucus issue, I have a 3/10 constant chest pain, right over the heart. I got an X ray today, and nothing came back positive on it. I also had an EKG done, that was negative as well. I am also dizzy, confused, and nervous. Any suggestions?