Hi again,
The pain could also be due to scar tissue that has developed when you had your biopsy. If you notice a lump and that the pain is increasing you could ask your doctor to order an Ultrasound to see if your discomfort is caused by scar tissue .
Fibrocystic breast condition could also cause pain which tends to be bilateral but sometimes you can have more Fibrocystic involvement in one breast than in the other.You may also feel a lump or lumps within the breast tissue and the vast majority are harmless.Most often they could be cysts or Fibroadenomas (both benign) These lumps are very common and are known to increase in size and tenderness due to hormonal changes.
P.S. Please,do not start a new thread if you have any additional questions or comments.It would be better if you keep them on the same thread by using the space below the answer/s you have received.This helps to have all your information together so we can better help you.
Thank you