I have headaches at least 4 or 5 times a week. what can i do if anything to prevent this?

See MD: You must be seen by your doctor. Provide info as to associations with headaches trauma visual problems, nausea emesis, medications, blood pressure issues and associated activities. Do you wake up with headaches?

Depends on cause: If it's vision - get Rx correction lenses. If allergy/sinus - avoid allergens, find effective antihistamines. If work envirornmental factors, improve lighting/posture/take breaks. If stress, relaxation/meditation or psychotherapy. See? It depends. Track them and decide how to solve them. Maybe an exam too!