Hello! For the past two days I have been experiencing a weird "vibrating" sensation in my right breast. I nursed my first daughter, Nola, for 19 months and never experienced anything like it. My second daughter, Izzy, is 5 months old and has nursed without any problems at all. The sensation isn't causing me any pain; I would compare it to the feeling of gas moving through your intestines. It also doesn't seem to be affecting my milk supply. I've googled it and haven't found anything. I thought maybe this is a common occurrence among nursing mothers. I hope to hear from some one soon!