I had an endoscopy two days ago. I woke up in recovery coughing a lot of chest junk up. I had no cough or cold symptoms prior to the procedure. I am still clearing out junk from my chest the way I would when I am sick with chest infections. My lymph nodes on both sides of my neck and up toward my mandible and ramus are very tender and swollen. My throat itself is not sore. I am not sure what to think of all of this. Could the procedure be causing some infection?, but the incubation of it all seems very fast if it did.