I'm not sure what this is I'm feeling. I suspect it's let down or milk being released but wondered if someone could tell me for sure. When I am feeding on one breast the other will get this tingly type strange feeling in it for a moment or two. Sometimes it also happens when I'm not feeding at all and then I get it in both breasts. Is this the milk letting down? I thought let down was only during the first moments of feeding. It's a very odd feeling, not painful or uncomfortable, just odd.