fret
disquieten
haunt
trouble
worrit
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
fear
distressed
dreadness
concern
trepidatious
care
apprehend
broodingly
misgiving
trepidation
anxom
somberness
begruntle
cheerlessness
gloominess
piggle
gloom
sombreness
uncheerfulness
sweat blood
ill at ease
glumness
sullenness
moroseness
shudderingly
jitter
apprehensiveness
trepidate
fantigue
troubledly
consternated
gloomyish
geek out
tenebrose