Chris8080...I know this is an old thread, but your post got my attention. I hadn't been able to find anyone who had an experience like mine. Until I read your post. I'll try to condense this. I began hrt and transition 18 years ago when I was 45. After 12 years I had to, for personal reasons, transition back to male. I've been living and presenting as a male since. I still had breasts, a large B cup, so I did get a few looks occasionally. I had stopped taking estrogen, but was still taking meds for enlarged prostate. I never liked how I felt being completely off estrogen, so about 18 months ago I began taking a low dose. I wasn't worried about additional breast growth because of the years I had been on estrogen previously, the low dose I was going to take, plus my age. To say I got a surprise doesn't begin to describe it. After the first week I had quite noticeable breast growth, including nipples and areolas. And the rapid growth continued. I was shocked at the amount of growth I was having in such a short amount of time. Maybe it was a combination of my age (less T production), the med for enlarged prostate, and then the low dose estrogen thrown in. I really don't know for sure, but I wish this would have happened when I first began hrt. I'm still seeing some growth, but it has slowed down considerably. For awhile I considered stopping the estrogen. After the first 6 months or so I was actually concerned that my breast growth was getting out of hand and I wasn't sure if/when it would stop. I haven't measured, but I would estimate that today I'm close to, if not at, a D cup. I'm 5'10" and weigh about 175, wear tee shirts during warm weather and no, I don't wear a bra. So I now get more than an "occasional look". But I've gotten used to it. So for those who think they'll never get any bigger, or are too old to start hrt, there are always exceptions. Just be careful what you wish for. You just might get it!