Aww sabar ya, 13 weeks lagi boleh je terus nausea especially kalau first baby! A few of my mum friends yang sama situation, ada yang naik sampai 16-17 weeks baru settle sikit. Try small frequent meals instead of 3 big ones, munch on biscuits first thing pagi before you get up, and ginger tea or lemon water helped beberapa of us. Dehydration buat worse, so drink plenty throughout the day lah. Since this is your first time and it's affecting you quite a bit, worth checking with your doctor to confirm everything's normal and maybe they can suggest something safe untuk pregnancy, some moms benefit from anti-nausea supplements too. You're doing great, this phase will pass!