I don't think you should panic, but I do think you should go see your doctor. If it is a caffeine lump, then you don't lose anything by getting it checked, if it is something else (could be a clogged bile duct) you get to figure out what needs to be done. My advice is better safe than sorry. You say your breasts are lumpy, but your husband thinks this is new, so it should be checked out. Best wishes.