Yep, they are totally right, it's all milk, just like when I was told I could never have kids by a doctor, I never had one *eye roll* (this is tongue in cheek by the way)
Doctors PRACTICE medicine. Look at the keyword, practice. Many things they tell you or recommend are just because that's all they know or, yes, they GUESS!!! They GUESSED that my hubby had runner knee but he doesn't. They GUESSED I could never produce children yet I have a very healthy 5 year old son. Trust them on the serious stuff that they do know the answers to like if you have a cold, need a surgery, etc. But for alternative practices, like others said, MOST doctors won't have a clue about. My doctor has no clue I noogle. I made the mistake once to ask a doctor about taking fenugreek to increase my milk production while breastfeeding, you want to know what he said? "HAHA that's just an old wives tale, I don't think the herb would hurt any, but don't think it will help either, you could ask the midwife here, she might know". And he made fun of me and belitted me for even asking! A simple thing as a well known herb that is KNOWN to increase milk production in lactating, nursing women, and he mocked me for even asking. So yea, if you want to know if it really works search the forum. None of my growth is milk. I've breastfed, I know what that feels like. When my selling from pumping goes down, it's all natural boobs. No milk filled glands, no hocus pocus, actual REAL growth. Yes real growth from pumping takes time, but anything worth doing takes hard work.
Hope you don't let the implant talk get to you! Good luck.