I've worked as a professional bra fitter for 7 years. I've seen about all there is to see concerning breasts. I've fitted for women who have had breast augmentations, reductions and mastectomies. I have even fit men for bras. AmA
Edit: I hope my advice has helped the ones that need it. Bottom line is, take the time to find the right size! Find a foundations boutique in your area, if you can. DO NOT put your bra's in the washing machine. Handwash them with Ivory bar soap.
Edit: I apologize if I didn't get to answer your question. I had no idea I would get so many. I will resume answering tomorrow, so don't lose hope.