My confinement period is going to end soon. After that, when I resume back to my normal diet, is there anything I need to take note off like what can't eat or what can't drink as I am breastfeeding?

To me, eat food in moderation. For breastfeeding, had tried oats, grains, fish and milk help but all these also depends on individuals. It may work for me but not for you. Having said that, do cut down or reduce oily food ... fried food especially.