Wa'alaikumassalam! Aih I know the feeling, memang scary when appetite hilang at 7 months sebab berat baby pun sedang naik pesat kan, a few of us mums went through this too, some kena morning sickness yang extend, some kena anemia atau low hemoglobin which memang buat tak selera. Since your HB concern is real, mesti la check with your doctor first coz they need to do proper blood test; tapi in the meantime try small frequent meals instead of forcing big portions, and minum plenty of fluids plus supplement yang doctor suggest (usually ada iron), some of my friends said once they settled the HB, appetite came back naturally.