Answer: megrim

AnswerCrossword Clue
MEGRIMVertigo
MEGRIMMigraine.
MEGRIMHeadache.
MEGRIMSevere headache.
MEGRIMFlounder
MEGRIMCaprice
megrima migraine; also, a fancy or whim; in the plural, low spirits.
megrimlow spirits; the blues
megrimextremely severe paroxysmal headache, usually confined to one side of the head and often associated with nausea; hemicrania
megrima severe headache, also MIGRAINE
megrimwhim or caprice