my son is 8 years old since the last 3 days if he fasts for more than 3 hours his headaches so badly that he starts crying and could even gulp a sip of water, tweching of left facial muscles also frequently seen in the same period

A. Hello my dear parent! Headaches at this age can be mostly due to severe dehydration, especially in the scorching heat. Ensure that your child is well hydrated all day. Consult your child doctor for a personal diagnosis and seek medical guidance in this matter.