Although COVID-19 mostly causes cough and respiratory symptoms, it could also cause gastrointestinal symptoms, such as vomiting and diarrhea. It is difficult to tell whether it is food poisoning or COVID-19 based only on symptoms.
1. If other family members also develop the symptoms after eating something, then it is more likely to be food poisoning.
2. Food poisoning generally goes away on its own within a few days to a week. If the symptoms persist, then it is unlikely to be food poisoning.
If your mom's condition does not improve within a week, she needs to go to the hospital.