Dear charlenecohen, It is not uncommon to have some differing from one breast to the other. This is true in regards to physical characteristics such as breast size, it also is true in regard to response to cold.
Asymmetry is part of nature: one's breasts are rarely exactly the same on both sides. The point in your case is that the changes occur in response to cold, and go away completely.
Yes it's true that the changes occur as a reaction to cold, but I was worried because although they disappear when I'm warm, it is always the same bumps that occur again when I am cold; that is, bumps occur in the same place. That could not be a lump, couldn't it? Thanks and sorry for asking too many questions but I found your help very useful.
since the bumps that occur when I feel cold are always the same bumps, could they be lumps? thanks and sorry for disturbing again.