Ay, ito ang "pins and needles" feeling na sinasabi ng iba, normal lang yan especially during letdown or after pumping! A few of us mums experienced that tingling sensation, it's usually just your milk ducts adjusting or the hormones doing their thing, pero if it's really painful or may redness/warmth, better check with your OB or lactation consultant na lang para maassure ka, kasi sometimes it could be something like engorgement or even early mastitis na need ng attention. Kako, nag-pump ka ba ng matagal or too strong ang suction?