noun. A pain in the head.

noun. Something, such as a problem, that causes annoyance or trouble.

noun. A pain in the cranial part of the head, apparently somewhat deep-seated as compared with the sensation produced by a superficial irritation of the scalp.

noun. The corn-poppy, Papaver Rhæas, the odor of which is said to cause headache. Also called head-wark.

noun. Pain in the head; cephalalgia.

noun. A pain or ache in the head.

noun. A nuisance or unpleasant problem.

noun. pain in the head caused by dilation of cerebral arteries or muscle contractions or a reaction to drugs

noun. something or someone that causes anxiety; a source of unhappiness

noun. pain in the head caused by dilation of cerebral arteries or muscle contractions or a reaction to drugs

"What is called "_sick headache_," or "nervous headache," begins by a sense of blindness or blur, before the eyes, of green or purple colors, dazzling or swimming in the head, without, for some time at first, any positive aching or pain."

bilious headache  blind-headache  organic headache  reflex headache  sick-headache  

ache  aching  

cluster headache  hemicrania  histamine headache  megrim  migraine  

ache  ailment  asthma  convulsion  cough  

MS  ache  aching  ado  aggravation