Sis, congrats sa CS mo! Honestly, most of us dito sa group waited at least 2-3 weeks before we started drinking cold water regularly, better safe lang kaya after a major surgery. Pero this is really something you should ask your OB about because it depends sa healing mo and kung may complications, kaya mas sure if you check with your doctor na lang talaga. One of my mum friends was cleared to drink cold stuff earlier kasi okay ang recovery niya, pero iba-iba talaga. Take it easy for now and just sip room temp water muna!