Any tips

I have two boys each pregnancy was different my first one I found out and I was just a couple of weeks pregnant they had to put me on different types of medicine because I couldn’t stop throwing up I couldn’t hold anything down and the medicine worked my second son I didn’t even know I was pregnant I stayed small until I started having back pain went to the doctor they told me that I was pregnant and scheduled me for an ultrasound three weeks later I was 34 weeks pregnant I didn’t have any signs or symptoms of being pregnant besides the back pain this pregnancy I can eat but hardly anything if it’s too greasy or sweet it comes right back up if I’m not craving what I eat it comes back up they put me on medicine but it’s not helping does anyone know what I can try so I can hold my food down