is this normal?

hi everyone, i have a daughter who’s 18 months old and she is my only child. I was pregnant early last year but that pregnancy unfortunately ended in a miscarriage at 10 weeks. Ever since my first pregnancy with my daughter i’ve still been experiencing intense nausea daily like i did when i was pregnant. I lost over 50 pounds when i was pregnant with my daughter due to me constantly throwing up.

I was reassured by multiple doctors that it would go away eventually but i feel like it’s just been getting worse these past few months. I’ve lost over 20 pounds since the start of 2023, i can’t go a day without throwing up. Is this normal? Am i over reacting? Everytime i present this concern with my doctor he’s told me it’s just ‘normal postpartum’ and i think he thinks i’m lying or over reacting. I just don’t understand how other women do this if it’s normal. I’m not sure what to do anymore and need some advice