Food Poisoning (Foodborne Illness), First Aid 

Within hours or days of eating contaminated food, symptoms generally include diarrhea, nausea, abdominal pain, fever, and, sometimes, vomiting. Foodborne illness is often confused as the flu, as the symptoms are similar.

Symptoms of botulism include headache, dizziness, slurred speech, difficulty swallowing, and difficulty breathing occurring within 12–36 hours of contamination.