fret
haunt
disquieten
worrit
trouble
dreadingly
get one's bowels in an uproar
dread
one's heart in one's mouth
apprehensively
pain
discomposed
tie oneself in knots
suspense
anxiousness
uneasily
dreadness
apprehend
concern
distressed
trepidatious
care
fear
misgiving
broodingly
trepidation
gloom
piggle
begruntle
uncheerfulness
gloominess
sombreness
anxom
cheerlessness
somberness
shudderingly
sullenness
sweat blood
ill at ease
glumness
moroseness
trepidate
apprehensiveness
jitter
fantigue
geek out
tenebrose
troubledly
ogived
consternated