happening infrequently

 

not to remember

 

energetic; unrelaxing

 

to thrust out one's limbs and tighten one's muscles

 

harmful or offensive

 

time when you go to bed

 

unsteady; giddy

 

opposite effect

 

opposite of *higher*

 

opposite of *night-time

 

opposite of *older*

 

subject to stress

 

important uncommon

 

coming at intervals

 

a cramping pain

 

a person receiving medical treatment

 

of little significance

 

strongly marked

 

a prolonged dull pain

 

making narrow

 

produce an effect on

 

a current of air in a confined space

 

passed down from one generation to another

 

which happens at night

 

definite

 

adjust

 

the alleviation of pain

 

with no doubt

 

causing trouble

 

appalling; frightening