The most common type are tension headaches, these are caused by tensing of the muscles around the neck and upper chest due to stress or physical strain,these are characterized by a pain starting at the base of the neck and working up the scalp. Sinus headaches are generally a dull pain in and around the nose that is caused by congestion from a cold or flu, allergies; sinus headaches must be treated to prevent a more serious condition. The most painful types of headaches are vascular headaches. Vascular headaches are caused by blood sugar changes, high blood pressure, and include migraines, they are characterized by local and sharper pain that can be worsened by light, sound, and even smell and cause high sensitivity and pain that may result in fainting or vomiting.