I was diagnosed with breast cancer in 2008. I had chemo, lumpectomy and radiation, in that order. Just hit the magic 5 year mark last year. Now, I feel a lump on the bone behind my right ear. Now, a little history...I've had hearing problems for the past 10 years and I've had ringing in my ears for about the past 7 years. Of course, I'm worried that this might be cancer. I've made an appt. with the family doctor to have this looked at but I'm a real worry kind of person.