Sudden breast changes

My breast have been pretty much symmetrical my whole life. If there is a difference I sure never noticed. But the past week I’ve had sooo much pain in my right one. Just sitting here, it’s radiating at times. Not just tenderness actually heavy and painful. My left, has no pain!

No I’m not ovulating and it’s not due to my period. I’m not pregnant.

Has anyone had this other than ovulation/period/pregnancy/breastfeeding.

I even thought I was crazy thinking my breast size has change. Asked hubby, and he agrees right is bigger. I measured the diameter of them. The right is .75” bigger suddenly 🙈😫