Headache, vomiting and generalized soreness can be seen in gastroenteritis, central nervous system infections and respiratory tract infections. 1. gastroenteritis: gastroenteritis can have a history of unclean food, in addition to headache, vomiting, generalized pain, but also with diarrhea, abdominal pain and other symptoms. 2. central nervous system infection: it can be seen in encephalitis, meningitis and other diseases, in addition to headache, vomiting, generalized pain, but also fever, convulsions, vomiting and other symptoms. 3. Respiratory tract infection: it can be seen in upper and lower respiratory tract infection, in addition to headache, vomiting, generalized soreness, there can be fever, sneezing, runny nose, coughing, coughing up phlegm and other symptoms. Headache, vomiting, body aches and pains can be seen in a variety of diseases, if you feel unwell, you need to consult a doctor in a timely manner, to identify the cause of active treatment, so as not to delay the condition.