I have had a knot in my right armpit for a yr. Now. It started out small and keeps getting bigger.It gets bigger and really sore when it is time for my period, even though I have had a histerectomy and dont have my period anymore, I still can tell when it is time for it. It gets so sore I cant stand it. It even hurts to move my arm. I went and had a mammogram, my breasts seemed fine. I still dont know whats causing the knot it is so painful just to shave under my arms. If anyone else knows anything about this, could you please let me know. I am really worried. I have a appointment to go to the Dr. Next week. Maybe they can tell me something. Any info would be appreciated.
Thank you.