72, white female. Drinks wine with dinner. Occasionally in the morning I feel a need to cough and clear my chest and sometimes I bring up mucus which could be clear or, green. During the past two months I sometimes see dark brownish spots in the mucus. Healthy, not on any prescription medications but take two to five Aleve A MONTH for arthritis. Breast cancer 22 years ago, bi lateral mastectomy, no chemo or radiation. Should I be concerned? Recently saw my doctor. Lungs and heart sounded good. Thanks!