Dear, you appear to be suffering from Cluster Headache. In such type of illness patient experience sudden onset severe headache which comes in clusters (recurrent many times a day for few weeks). Then there is a lull period and person remains symptom free for many months. Again there occurs a cluster of headaches for few weeks. This type of headache is usually unilateral and associated with tearing difficulty in vision, lacrimation and photophobia. You should consult a physician who may prescribe you some prophylactic medicines to avoid such headache and also some medicines to abort the attack. Few non specific measures to help you are:- Take good diet, proper hydration, adequate sleep and rest. Avoid exertion, prolonged exposure to sun and stress.