I'm not normally known for a large cleavage but I'm currently breastfeeding ds and have gone up a couple of cup sizes. I've been running for a couple of months but having trouble with a flapping and bouncing chest . OK, we're talking D cup so not massive but it feels huge to me!
I've got an Adidas sports bra and a cheapy one but is there anything else I can try (preferably not too expensive as this may prove to be another short lived fad . I try to feed ds before I go but it's not actual breast/tissue pain that's the problem, more the bouncing around.