I'm 8w pregnant i believe i had food poisoning off an onion soup constant vomiting/diarrhea for 24h 6h after eating soup. symp gone. fetus ok?

Okay: What you described is not likely to have any ill-effect on the fetus. For the sake of your and your baby's health, you should be under the care of an obstetrician for ante-natal care. Wish you good health and a healthy baby! For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Drink enough water daily, so that your urine is mostly colorless. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Practice safe sex, if you have sex.