Dear Lisa, Just to let you know, women's breasts are seldom exactly the same size (although mine were, before I had a biopsy the size of an egg removed from my left breast at 9 O' Clock, where my breast contacts my left arm). Interestingly, the last two months my breasts suddenly enlarged (along with other bodily changes), before the hot weather started, and my nipples became very tender. Am post menopausal, and I do have annual mammograms (thank God, clean). Saw the doctor last Monday, for a complete physical and blood workup, and I will let you know what she has to say. Would suggest you invest in some sleeping bras, as they will help you get a good night's sleep. Wish they had them in my size! LOL! Your friend, Monica