I had a bout of the swine flu about 3 months ago and I started to feel alot better for about 4 days when the sickness started getting better but then I developed an increasingly worse cough which has been violent for almost 3 months. I have lost alot of weight which people have been noticing and there is ALOT of clear sticky, stringy and white frothy mucus that comes up. I'm literally getting half a mouthful upon every cough. Often times, I'm coughing too hard to have any kind of conversation with anyone and my skin has developed this slight greyish yellowish color which I didn't have before. I've been to this doctor twice who says that with asthma, you cough after having a flu since I have asthma but not severe. I however can't shake the feeling that something may be really wrong. Like this is not a regular cough. It is really violent which makes me run to the toilet to throw up and doesn't allow me to get enough sleep. Does anyone have any clues as to what this might be and what I should be doing?