t feel any pain in my chest or throat, or a shortness
of breath, and this is the first time I have ever coughed
up blood. Now I do occasionally cough
up bits of marijuana resin in my phlegm so I don't know if it is related or not. My friend told me that sometimes during the Winter months your nose can bleed and it can go into your lungs, but the amount of blood that came up didn't seem enough for a nose bleed. I'm a little worried, I hope I don't have lung cancer, please help.