Sayang, morning sickness sampai 17 minggu tu memang boleh terjadi, a few of my mum friends also went through the same thing, nasib baik towards the end of second trimester lah gerak sikit. Tapi sebab muntah teruk, better check with your doctor to make sure everything's okay and maybe dia boleh suggest something to help, because constant vomiting boleh affect your nutrition and energy levels. Jangan worry, banyak mummy yang through this fase jugak, you're doing great! Hang in there, dear