agitation
all-overs
blue Johnnies
blue devils
chills of fear
cold creeps
cold shivers
cold sweat
creeps
disquiet
disquietude
dithers
fear and trembling
goose bumps
gooseflesh
heartquake
heebie-jeebies
horripilation
inquietude
jitters
jumps
nervousness
palpitation
perturbation
pink elephants
pink spiders
quaking
quiver of terror
quivers
shakes
shivers
snakes
sweat
the beezie-weezies
the heebie-jeebies
the jimjams
the screaming meemies
the shakes
thrill of fear
trembles
trepidation
trepidity
uneasiness
willies