“TWITCHY” is a valid word. — 18 points Scrabble

with
citya large and densely populated urban area; may include several independent administrative districts
itcha contagious skin infection caused by the itch mite; characterized by persistent itching and skin irritation
whita tiny or scarcely detectable amount
twitsomeone who is regarded as contemptible
chita dismissive term for a girl who is immature or who lacks respect
wich
wych

whythe cause or intention underlying an action or situation, especially in the phrase `the whys and wherefores'
hit(baseball) a successful stroke in an athletic contest (especially in baseball)
thy
chithe circulating life energy that in Chinese philosophy is thought to be inherent in all things; in traditional Chinese medicine the balance of negative and positive forms in the body is believed to be essential for good health
wita message whose ingenuity or verbal skill or incongruity has the power to evoke laughter
icydevoid of warmth and cordiality; expressive of unfriendliness or disdain
titeither of two soft fleshy milk-secreting glandular organs on the chest of a woman
ich
tica local and habitual twitching especially in the face
hic

itthe branch of engineering that deals with the use of computers and telecommunications to retrieve and store and transmit information
hian expression of greeting
tia light strong grey lustrous corrosion-resistant metallic element used in strong lightweight alloys (as for airplane parts); the main sources are rutile and ilmenite

TWITCHY