The neck , since muscle rigidity of the neck is a cardinal sign of meningism, and positive Kernig and Brudzinski signs suggest the possibility of an underlying neurologic pathology. Any sensory or motor loss should be noted. Tendon, flexor, and plantar reflexes should be tested, the finger-nose test should be performed, and evidence of gait abnormalities or Romberg's sign should be sought. Abnormalities in any of these areas require further investigation and may call for referral or consultation. Classification of Headaches Headaches can be divided into two broad categories, primary and secondary.
Primary headaches are recurrent and benign.
Secondary headaches are the symptom of underlying disease requiring further investigation and maybe referral. These are discussed in detail in the sections that follow. Migraine Migraine headaches and migraine visual disorders are caused by changes In the blood vessels of the brain. In migraine disorders, these blood vessels suddenly constrict, severely limiting the blood supply to the brain. This causes a wide variety of symptoms including numbness, tingling and possible decreased strength in one or more extremities.