The study also showed that male population suffers from the stroke less frequently than female population. It cannot be explained clearly. In fact, the stroke can be the result of many different factors. It is impossible to define it by the headache only. You should pay attention to the problems with vision more than any other symptoms. Still, if you notice the combination of few, it is important to consult a health care professional immediately. A lot of harmless things can lead to the doctors deciding on the wrong diagnosis. MRI scan is the tool to detect the real problem.