Aww sayang, tu memang morning sickness yang teruk Mmg banyak mum friends sy ada mcm tu especially first trimester, tapi sebab muntah non-stop dan kepala pening, better check with your doctor or midwife soon ya, boleh jadi dehydration atau something else yang need proper support. Baby mmg kecil lagi 6 weeks, so jangan worry sangat pasal development yet, tapi kena make sure you okay dulu sebab if you're not eating, you're drained. Try small frequent meals, cold drinks, ginger supplements (safe habis tu), and ask your doc about anti-nausea options yang aman for pregnancy, ada beberapa choices. Hang in there, ini phase yang kelam but will pass!