I'm a bit confused and worried about my recent HRCT thorax report. It mentioned that there are a few subcentimetric lymph nodes in the pre-tracheal and pre-carinal regions, but everything else seems normal. I've been having breathing issues, though my PFT report came back completely normal. It turns out the breathing problem is caused by an arytenoid covering half of my vocal cord. I just need to know, are these subcentimetric lymph nodes something to worry about, or are they considered normal?