rhythmic
rhythmical
aching
achy
arrhythmia
backachy
barrage
beat
beating
cadenced
cadent
clicking
colicky
didder
disquiet
disquietude
dithers
drum
drum music
drumbeat
drumfire
drumming
fidgetiness
fidgets
flutter
fluttering
full
griping
headachy
heartbeat
heartthrob
heaving
in numbers
in rhythm
inquietude
measured
mellow
metric
migrainous
palpitant
palpitation
panting
paradiddle
patter
pitapat
pitter-patter
plangent
pound
pounding
pulsatile
pulsating
pulsation
pulse
sound
bobbing
hobbing
lobbing
robbing
sobbing