Breast pain can come from so many sources - the least likely of which is probably breast cancer, thankfully. At your age, I'd suspect the pain is hormonal. Does it come and go in synch with your period? Or is it constant - every day of the month, for most of the day? In that case, you might be experiencing fibrocystic change – common in women in their 20s-50s. This is a condition marked by an overgrowth of breast tissue, and the formation of cysts, which can be quite painful.
What can you do to address this pain? First, see a doctor. We're not doctors here, and can't diagnose, nor offer treatment solutions; so you really need to get some medical advice.
While waiting to see the doctor, try cutting back on caffeine; some women report this offers them relief from breast pain. Make sure your bra fits well; does it offer enough support? And try cold compresses; cold usually works to temper pain.
Best of luck - I hope you find out what's causing this soon, and find some relief. PJH
Get a thermogram! It can spot inflammation that may lead to breast disease years before mammography. visit: http://btiscan.com/
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