concern
worry someone sick
beworry
sweat
give pause
bibble
lose sleep
eat
worryingly
worriting
fear
worriedness
disquiet
concerningly
worriable
worrisome
geek out
freak out
worrit
preoccupy
trouble
worrying
fash
flay
make someone's hair stand on end
worriedly
piggle
raise the spectre
concerning
run the risk
on one's mind
put the shits up someone
do someone a frighten
scare the hell out of
run scared
fret the gizzard
worriment
put the heart across one
out of one's skin
worry
weeping and wailing and gnashing of teeth
care
touch
fearful
scare the life out of
brick it
gnawingly
dread
fret
apprehend
afraid
concernedly
flip shit
fray
scare the pants off
deal
troubling
fearmonger
hanky-twist
press the panic button
scarecrow
flip one's lid
watch
terrifiedness
regard
fantigue
alarmingly
worryguts
crap one's pants
spook
spook out
funk
ominousness
piss one's pants
morbidize
frighten the life out of someone
niggle
scare someone to death
watch one's step
not bear thinking about
whiggify
fuss
worryful
tarrify
tremble
wrack
get the wind up