Sayang, morning sickness yang balik macam ni memang boleh jadi especially around week 12, some of us mum friends also mengalami waves of nausea yang datang balik even after feeling better, tapi muntah lebih 5 kali sehari tu agak concerning, especially since you were warded before, so kena check with your doctor asap to make sure you're not dehydrated or ada anything else yang perlu dimonitor. Jangan tunda-tunda tau, masa pregnant kena cepat je kalau rasa something's off. Hang in there, at least week 12 tu dah dekat habis first trimester!