I am 30 years old and have a sudden painful lump under the skin on my shoulder. It is not red or bruised. I didnt have an injury that occurred, but it is a swollen lump, and VERY painful.  It began at lunch today with an ache and since then has developed into these other symptoms.  What could it be
Hi! Good morning. I am Chat Doctor answering your query. As it might not be possible to advise you rightly over the net on your problem without a personal physical examination, I would advise you to consult your family physician or a general surgeon in your area for a clinical assessment FNA further needful. Thanks for choosing Chat Doctor to clear doubts on your health problems. I wish you an early recovery. Chat Doctor.