Thank you so much for your reply i will go for evaluation
Hi,
This sounds like it could be a Fibroadenoma or a cyst ( both benign).
Breast tissue often changes during the menstrual cycle,causing cysts or fibroadenoma to appear and then disappear or shrink when the period is over.
Try not to panic,this could be not serious at all,but if you are concerned ask your Doctor to refer you to a Breast Specialist for evaluation.I know breast lumps are frightening to discover and should always be investigated,but keep in mind that a high percentage of all evaluated lumps are benign.
Best wishes and hoping that all goes well for you .