Nay, not sure what's going on with your breasts. This is a breast cancer site, and we're breast cancer survivors, not doctors, so we're not able to give much input on other breast issues. Thankfully, this doesn't sound like a breast cancer symptom; swelling related to bereast cancer wouldn't come and go, it would be constant and getting worse.
I'd suggest you see your doctor about this. It sounds like you may be experiencing some hormonal issues, especially if the swelling is appearing in both breasts, rather than just one. Good luck - PJH
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