Feeling down. Need some mummies support.

My first pregnancy was pretty smooth. I had gastric pain and morning sickness too. But not as bad as this pregnancy. First tri, my morning sickness was so bad that I got admitted to hospital. It was so bad that it become gastric issue. I eat separate 6-7 meals everyday. But all the meals quantity add up to one meal quantity only. As I only eat 2 bites every meal. I'm alr 12wks preg. But my condition still doesnt improve. sweet, salty, sour. Nth helps with morning sickness. I feel so 崩溃。Gastric issue for one mth alr. My body feels weak. I can't help with hse works or my first born. Hubby say it's okay. I can't control it. Is not like i choose to make myself unwell. Morning sickness cant be control. But i still feel so guilty not being able to do more. Feels like my health is at the edge alr. Doctor say I'm malnutrition and i can't lose anymore weight. Less than 2 mths i lost 7kg. I feel so helpless. Idk how to increase my appetite... I eat, i vomit. Even drink water also vomit. Vitamin B doesnt help. Even western med for vomitting. I really dk what to do alr...