e/Orthostatic headache

Information
has gloss	eng: Orthostatic headache is a medical condition in which a person develops a severe headache while vertical and the headache is relieved when horizontal.
lexicalization	eng: Orthostatic headache
instance of	(noun) pain in the head caused by dilation of cerebral arteries or muscle contractions or a reaction to drugs headache, head ache, cephalalgia