I had pneumonia two years ago and I have recovered from it after taking antibiotics for 10 days. Two months back, I had bronchitis and a milder form of pneumonia. After a week of antibiotics I felt much better. Now, my main concern is that I have excessive phlegm with some traces of blood as I am doing sports. I am concerned, but at the same time I am not coughing. But I feel the need of clearing my throat quite often. I have good energy and I take vitamins during the day. Could vitamin B12, D complex, vitamin C, NAC and Omega 3 influence my situation? Is this normal? I have attached the x-ray of my lungs, which was done two months ago at the time of diagnosis of bronchitis and pneumonia.