I have a lump under my left arm down from my arm pit about 3 inches. I can feel the pain down. I to my elbow. Sometimes worse than others. I have a great deal o skin under my arm from being very over weight 15 years ago. The lump is hard to find and about the size of a nickel. The pain reaches my wrist sometimes and the thumb and next two fingers go numb on my left hand. I had a small mole like growth on my left nipple and had a mammogram that turned out fine. I have an appointment with a breast specialist in August. I am at a loss as who to see and what to tell them. I am 75 years old. Thank you for taking the time to look at m question. I don t think I am a hypochondriac but I am beginning to wonder. Thank you for taking the time to read my message. Nancy