Headache is a very common side effect of lisinopril. It occurs in early stage of treatment and it will resolve once you get accustomed to lisinopril. Other side effects are fatigue, persistent and non-productive cough, chest and abdominal pain, dizziness, nausea, vomiting, diarrhea, and rash. Advice 1. Continue lisinoprol as suggested 2. Paracetamol 500 mg when headache is unbearable. Otherwise avoid it 3. Regular exercise at least 30 minutes for 5 days in a week. The best types of exercise for lowering BP include walking, jogging, cycling, swimming or dancing 4. Eating a diet that is rich in whole grains, fruits, vegetables and low-fat dairy products and skimps on saturated fat and cholesterol 5. Consume less salt 6. Avoid smoking, alcohol, coffee and caffeinated beverages 7. Lose extra weight if you are overweight and keep your body mass index between 19 and 25. BMI is calculated by formula BMI = Weight in Kilograms / (height in meters x height in meters) 8. Reduce your metal stress because stress activates sympathetic system and increases BP 9. Measure your BP regularly and be in touch with your doctor 10. Investigation – fasting lipid profile I hope this information will help you. I will be happy if you ask another question Thanks for asking question