i have cold-like symptoms-stuffy nose, pressure in my ears, sneezing, and coughing. what I am concerned about is i have felt this coming on and worsening for 4 days. now i am coughing yellow thick mucus from my lungs. my eyes also burn and itch. no fever , however, so this leads me to believe it might be allergies. my allergies have been with me a few years now (i'm 62), but i have never been this bad. should i see a doctor?