It comes natural to human beings to quickly forget unpleasant things such as pain, it is advisable to keep a headache diary: When and under what circumstances do you have headaches? What side effects do you have (nausea, vomiting, sensitivity to light, noise, odor, blurred vision, etc.)?
The “lost” memories of the pain can be just as important for the diagnosis as to the so-called pain memory. In addition, the headache diary supports the conversations between the patient and the attending physician. Consistent journal writing also helps you gain new insights about your pain.