gripped
scared stiff
scaredly
flip one's lid
crap one's pants
piss one's pants
petrified
scared to death
shit scared
panic-stricken
scared spitless
scared shitless
terrified
anxious
bathmophobia
frightened
panicky
panicked
petrifying
panic-struck
'fraid
afeared
alarmed
nervous as a long-tailed cat in a room full of rocking chairs
trepidant
fraidy
ascared
quake in one's boots
edgy
brick it
chemophobic
nervous as a whore in church
shaky
scaaared
take fright
nervous as a cat
fearingly
windy
hyperanxious
scared
shy
ambulophobia
keyed up
poopless
scare
panic attack
hagridden
quakingly
afraidly
superworried
unsatisfied
restless
ungratified
flay
panickedly
bag of nerves
daunting
intimidating
neurotic
overnervous
knee-trembling
fear
sweat blood
cleithrophobia
frightsome
stasiphobia
horror
nervicited
altophobia
fret
anxom
eerie
have one's heart in one's boots
hypsophobia
in a state
funk
scareable
bristle
shitting planks
cold chills
stand up
uprise
chionophobia
press the panic button
overanxiously
speluncaphobia
jumpy
crawlies
impatient
trepidatious
nervously
pedophobic
overfearfulness
panickingly