Severe morning sickness/ food aversions help please :(

Shallin

I keep losing weight with this pregnancy so far almost 10 pounds less then pre pregnancy weight. Anyone with serious food aversions and morning sickness have any tips on stuff I might be able to keep down or could help me gain what I'm supposed to? I have barely eaten as much as a few crackers the last week everything even the crackers half the time comes back up.