Aiya, 3 hari muntah dan cirit-birit tu memang scary especially when heavily pregnant, good thing dah check with the clinic! A few of my mum friends pun pernah kena gastric issues or stomach bug dekat third trimester, and boleh jadi dehydration jadi concern lagi since the baby pun needs it. Kena drink lots of water, electrolyte drinks macam isotonic tu membantu, and eat bland stuff je for now, but honestly, kalau it doesn't improve or you feel dizzy/weak, better go balik to the clinic or even go to A&E to make sure you and baby okay, because dehydration ni bukan benda nak main-main especially 32 weeks. Keep monitoring baby's movements too, should be normal as always lah.