Tummy trouble and weakness are caused by gastrointestinal colds and food poisoning, which need to be improved for the disease. Gastrointestinal colds can occur when the stomach is cold or after eating food that is not easily digested. Patients with mild symptoms of gastrointestinal flu will show symptoms such as anorexia and weakness, hiccups, etc., while severe patients will show symptoms such as fear of cold, low fever, nausea, vomiting, weakness, diarrhea, etc. When the symptoms of gastrointestinal flu are severe, it may even lead to poor mental health and extreme weakness due to dehydration, so timely treatment is needed. When food poisoning occurs after eating food, it can also cause uncomfortable stomach and weakness. The main symptoms include nausea, vomiting, diarrhea, dizziness, and in more serious cases, palpitations, difficulty breathing, and loss of energy. People with food poisoning should induce vomiting as soon as possible to reduce the irritation caused to the gastrointestinal mucosa and pay attention to replenishing water to avoid electrolyte disorders.