Mama, swelling sa paa after giving birth is pretty common, kami rin pati sa iba kong mommy friends, nag-swell ang paa namin during and after labor, kaya don't worry! It's usually from the fluids na nag-accumulate during pregnancy at labor, pero dapat bumaba yan in a few days to a week or two, lalo na if you're resting and keeping your feet elevated. Pero since it's been four days na and gusto mo sure, mas peace of mind mo if you mention it sa OB mo during your postpartum check-up, just to be safe lang, okay?