### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
Hi there,Im a 21 year old male and I have a few symptoms that I cant get out of my headI have a small lump in my left breast and have had it for about 3 years. It hasnt gotten any bigger and Ive had an ultrasound done on it that came back showing it to be non-cancerous.  I also have an enlarged lymph node in my neck/throat just below my jaw line, only on the right side that sometimes swells up and sometimes is normal, but Ive had this too for about 3 years.In about the past year Ive developed a pain in my right shoulder, 99% of the things that I do in my everyday life dont effect it at all.  But I can feel like its slightly swollen/enlarged compared to my left shoulder.  When I raise my right arm above my head like Im pointing to the sky and bring it back down slowly and to the side my shoulder cracks, every single time that I do that motion.Recently, in about the past month Ive started to get a tightness in my chest, almost exclusively associated to the days after I consume alcohol but not only on those days.  Im constantly thinking about these symptoms and second-guessing the ultrasound results.  Cancer is in the forefront of my mind whenever I start thinking about all these symptoms and my chest tends to feel like its tightening when I think about them as well.

### output:

HIT hank for asking to ChatDoctorI really advise you to control your thoughts it may be dangerous later on, it is kind of psychological condition developing, and that need to be stopped as early as possible, and you can only do it, it is not at all the thing as you are thinking just relax and forget every thing about this swelling it will go away without medicine do not worry eve if it takes little more time for this, have nice day.