Alahai, dengarnya mcm bloating yg teruk ni, especially kalau dah ada muntah-muntah and turun berat badan 2kg, sebaiknya check dengan doctor dulu okay, bisa jadi ada masalah digestive atau something else yg perlu proper diagnosis. Dalam tu, try makan air sup ringkas, porridge dengan ulam atau chicken plain je, avoid anything oily or heavy first, a few of us mums selalu try ginger tea or plain white rice with ikan masin when our perut acting up, memang senang nak digest. Main thing is drink plenty of water and rest, and jangan delay check with your GP sebab continuously muntah tu bukan normal sign.