So, I coughed up some mauve (dark pink) mucous on Friday and I'm wondering if anyone else coughs up that color? I know that indicates the presence of blood, but I'm really not sure why. I have been feeling pretty good. I didn't cough really hard or anything. It actually happened twice. Once, while I was doing my Xopenex (but no vest) and then again later after I did some canoeing on the Wii Resort game. Neither time did I cough really hard or anything. Pink would mean relatively fresh blood, right? Do I need more Vit K? Does that just happen to others sometimes for no reason?