Your symptoms of headaches and vomiting on an empty stomach could be linked to gastritis, acid reflux, or migraines triggered by fasting. To manage this, try to eat small, regular meals and stay hydrated. For temporary relief of stomach acidity, generic medications like omeprazole or famotidine may help. For the headache, paracetamol is a safe, gentle option. However, because these symptoms occur together, it is important to consult a doctor for a proper diagnosis. They can safely identify the root cause and prescribe specific anti-nausea or migraine-preventative medications if needed.