If you have pain in the lower left abdomen after dinner and drinking, which is relieved by vomiting, it may be gastroenteritis caused by alcohol stimulation or unclean food, and you should consult a medical professional for treatment. Drinking alcohol, if at the same time eating unclean food, will also appear after drinking abdominal pain, vomiting and other symptoms. You should seek medical attention for further examination. Also drinking on an empty stomach has a greater stimulation of the stomach and abdominal pain occurs. Colitis also occurs after eating pain, vomiting or defecation relief, this time should be done colonoscopy, according to the results of the examination of symptomatic treatment. Left lower abdominal pain in addition to the consideration of gastrointestinal inflammation, should also be considered urinary stones or female uterine adnexal inflammation, or ovarian cysts torsion, or the left adnexal area of ectopic pregnancy. All of the above situations need timely medical treatment. It is recommended not to drink alcohol on an empty stomach. If abdominal pain occurs after drinking alcohol, even if the pain is slightly relieved by vomiting, you should consult a medical professional for further treatment.