ailment
noun
[ ˈeɪlm(ə)nt ]
• an illness, typically a minor one.
• "the doctor diagnosed a common stomach ailment"
Similar:
illness,
disease,
disorder,
sickness,
affliction,
malady,
complaint,
infection,
upset,
condition,
infirmity,
indisposition,
malaise,
trouble,
bug,
virus,
lurgy,