Hi,
I have very slight swelling, or puffiness, on my upper left chest, between my collarbone and shoulder. It is not painful, although I do have some pain closer to the center of my chest. I also have sinus and ear congestion, and have been undergoing a series of chiropractic sessions to realign my upper back and shoulders. Could this swelling be a side effect of these treatments, or a lymph node issue from the congestion?