I have been breast cancer free for 20 months now, still having issues with medication,tamoxifen made me bleed heavily so commenced on letrozole and zoladex, have had a 2 month break due to severe bone pain, it appears they are not the problem of the pain.Noticed on my breast I have what look like 3 dents in my breast and when I raise my arm it looks like I have a ball shape next to my nipple.Is this due to medication or should I be worried.