Should I be concerned with severe tenderness in my right under are which radiates to my right breast?

I am a 55 year old white female who has been experiencing severe tenderness in my right under arm radiating to my right breast? My mother passed away this past March from complications resulting from her breast cancer chemotherapy. My older sister and my father have also had to undergo chemotherapy for breast cancer. I also have a small nodule in my neck which enlarges with sinus infections. I was told the nodule was to near my carotid artery to explore. Am I the next family member to be faced with this diagnosis?
Thank you and look forward to your thoughts on the above situation.

LymphomaInfo Social