All you want to know about Headache: Why are you getting them? Is there an underlying sinister cause? How can I diagnose my headache? When do I know I must meet a doctor? When should I undergo a brain scan? Is a CT scan enough, or should I do an MRI scan? What is the meaning of some finding on my brain scan? Are there any other tests that I must do, like EEG or blood tests? What treatment is best for me? Should I take medicines for a long time? Is it safe to take paracetamol for my headache? Why did my doctor prescribe an anti-depressant for my headache? Will my child also get headaches the way I do? Can this headache lead to any brain damage over long time?