What are the symptoms of eating bad mussel?

Eating bad mussels can lead to food poisoning, with symptoms such as nausea, vomiting, diarrhea, and abdominal cramps appearing within hours of consumption. In some cases, individuals may also experience fever, chills, and muscle aches. More severe reactions can occur due to toxins in contaminated mussels, leading to neurological symptoms like tingling, dizziness, or confusion. If symptoms are severe or persist, it is important to seek medical attention.