I don't worry about that. Getting "too small"???? Nah, not on my radar. (unfortunately!)
However, since gaining so much weight over the past 6 years, my cup size has stayed the same... a healthy "C"+ (meaning nottttt quite a D!) but I've gone from 34C to 36C and currently at a 38C. Would love to be back into a 34C. That would mean I've met my goal weight.
Yes, I'm the opposite of Krampus. LOL by the way! I will always be a DDD no matter what I do. Right now, I'm a 34 DDD. Do you know how hard that is to find? My mom is a 32 DDD. She has to order hers from the internet. I guess that will happen to me eventually.