There are many causes of stomach pain and weakness: 1. gastrointestinal colds, drink more water, pay attention to rest, pay attention to warmth, you can take Huo Xiang Zheng Qi water orally. 2. gastritis, gastric ulcer and other stomach diseases, as well as liver and biliary diseases, you need to pass gastroscopy, liver, gallbladder, spleen, pancreatic ultrasound examination to clarify the specific causes and then targeted treatment. 3. acute gastroenteritis, mostly accompanied by symptoms of bloating, diarrhea, drink more water The patient can take antibiotics and intestinal probiotics, such as flavopiridol and Bacillus licheniformis capsules. 4, acute appendicitis, mostly manifested as metastatic right lower abdominal pain, generally through routine blood, appendix ultrasound examination can be clearly diagnosed, according to the specific circumstances can choose conservative treatment or surgery.