I've had a pain in my head/eye that makes my eye water, it feels like a headache only lasts a couple seconds. what can i do?

Cluster headaches: Cluster headaches are severe type of headaches which often occur in middle of the night and affect men a lot more. The exact mechanism isnt known. You can find a lot of information on http://www.Nlm.Nih.Gov/medlineplus/ency/article/000786.Htm nih or national institute of health has information about most medical problems and will give you details about it. Consult a neurologist / pain physician.