This is a symptom a friend had recently, not myself. I am not sure she has gotten an adequate diagnosis. Recently, she had a vibration in her left breast. It lasted for several hours and went away. A few days later, she had the same vibration in her right breast. She said it felt like she had her cell phone at the location where the vibration was occurring, but it was not even on her body. What is the meaning of this symptom????