Ah mama, the OGTT is really tough, that glucose solution is thick and super sweet kaya mahirap talaga! Try drinking it fast para mabilis lang matapos, and some moms swear by sipping it through a straw or chilling it first para mas bearable. Ginger candy or mints right after (if allowed) help with the queasiness too. But honestly, best to ask your OB beforehand kung may specific tips sila or kung pwede mong i-adjust based sa iyong situation, kasi bawat mama different ang tolerance nito.