Please help I'm getting desperate

I have been hit with the flu pretty bad and threw up everything and was down right miserable, but then it started looking up and I got to the point I could start taking case of myself again and treating my morning sickness. However yesterday the cough that lingered from catching the flu has become an issue because I will cough until I gag and then everything comes back out of my stomach. I don't know what to do because this is my first baby and I have already lost 20 pounds since I became pregnant. What should I do? 😢