Hello to you too...
Well, since your mammograms were normal,I don't thing that you have to worry about this little lump in your right breast.I presume that it could be a simple cyst or a fibroadenoma ( both benign findings).
Since you have a history of breast cancer in your family,your doctor is just being cautious and is advising you to consult a Breast surgeon just for a second opinion and perhaps further investigation,if he/she thinks it is needed.
Pain in the breast is very common ...It could be due to hormonal changes prior to your menstrual cycle.Keep in mind that a cyst or a fibroadenomas could cause the pain your are experiencing,but malignant tumors are almost never associated with pain.
Hoping that all goes well for you when you'll meet with the surgeon.
All the best... :)