Hello I am a 52 year old relatively healthy male , very athletic up to my mid 30 s. I was extemely health consicious. Later in life i began to drink a bit more and started smoking . I have been the same weight for the past 25 years , give or take 2/5 lbs. Recently I have developed a small lump which at times is very painful (sharp to dull ) , but lingers for quite some time , I own a physiotherapy clinic and I asked our Dr. of Acupuncture what he thought It may be , first thing he said upon examination was swollen lymph nodes beneath the clavicle .Should I be concerned,I did plan on making an appointment with my GP , sorry I must admit I really am concerned I have three children. Please help