I noticed a lump on the left side of my neck today that feels warm. Never noticed the lump before but I hadn't checked specifically. I also felt dizzy and sore throat this morning.
Meanwhile, I've been investigating a persistent cough that has gotten worse over the past year, and I have seen some blood in my sputum, more frequently over the past month or two. I had a CT and there was nothing that explained the blood. Could the new warm lump be related to the coughing blood, or is that probably an unrelated virus (with sore throat and lightheadedness)? What should I do next, and is it urgent?