Ay alam ko yan, napakagulat talaga pag biglang umubo after CS! Usually nangyayari yan around day 3-5, at honestly ang sakit sa incision kaya madali mong maalala na nag-CS ka pa lang, haha. A few of us moms na nag-CS nag-share na it's from the anesthesia leaving your system or even the way your body's just recovering, pero since it's affecting your wound, better check with your OB para sigurado, lalo na kung matinding ubo o may laglag na.