types of headaches. schematic representation of foci of headache in stress, flu, osteochondrosis, hypertension. migraine.

abstract area background blood body brain cartoon chronic collection diagnosis diagram different discomfort disease disorder doctor eye face feel flat flu foci head headache headaches health hospital hypertension ill illness illustration influence isolated man medical medicine migraine miscellaneous osteochondrosis pain part patient point profile representation schematic sick signals silhouette sinus source stress symptom tension type types vector white