9 letter words:
headachey21,
8 letter words:
headachy20,
headache17,
5 letter words:
daych14,
chaya13,
hayed12,
heady12,
heedy12,
heyed12,
ached11,
dacha11,
decay11,
eched11,
aahed9,
ahead9,
caaed8,
cadee8,
4 letter words:
achy12,
chay12,
hech12,
yech12,
hyed11,
ayah10,
chad10,
haha10,
yeah10,
ache9,
each9,
eche9,
eech9,
ahed8,
ehed8,
eyed8,
hade8,
haed8,
head8,
heed8,
yead8,
yede8,
yeed8,
aced7,
cade7,
cede7,
dace7,
ecad7,
3 letter words:
hah9,
hay9,
heh9,
hey9,
hye9,
yah9,
yeh9,
ach8,
cay8,
cha8,
che8,
ech8,
dah7,
day7,
dey7,
dye7,
edh7,
had7,
yad7,
aah6,
aha6,
aye6,
cad6,
eye6,
hae6,
yae6,
yea6,
ace5,
caa5,
cee5,
dae4,
dee4,
2 letter words:
ch7,
ah5,
ay5,
eh5,
ha5,
he5,
ya5,
ye5,
ad3,
da3,
de3,
ed3,
aa2,
ae2,
ea2,
ee2,