I had two wisdom teeth extracted. 4 days later I developed a chest cold that I believe evolved into Bronchitis. About 4-5 days into this, after the tight feeling in my chest began to shift into a phlegmy cough, I coughed up blood. This was an episode that lasted for about 20 minutes. 4 days after that it has happened again. One important note is that my oral surgeon said there was one piece of root from one tooth that he could not get out without going under general anesthetic, but said it should work itself out . As the root works it s way out, could the blood clots be bursting and releasing the blood that is then swallowed and/or draining into my lungs as I sleep? No prior lung issues before this. Thank you.