Try eating fruits and salads. Light stuff. You just have to play around with the foods until you find something that doesn't bother you. Also make sure the food doesn't have a strong smell. Best of luck.
I am almost 24 weeks and have only lost weight to food aversion. I am now gaining some..well maybe the baby and belly are. I am now back to weigh that I was when I took a positive pregnancy test. The food aversion is still growing strong. I force myself to snack, and drink all times of the day.
Having food aversions is totally normal your doctor will monitor your weight and let you know if you're losing too much I wouldn't worry though your baby will take what it needs from your body just keep trying to force feed yourself and keep taking your prenatal vitamins if you're taking any