complain of (something)(redirected from Complains Of)
Also found in: Acronyms.
complain of (something)
To state the physical ailments or symptoms of illness that one is experiencing. The appendicitis patient came into the ER complaining of stomach pain.
complain of something
to moan and suffer from a disease; to report the symptoms of a disease or health condition. Kenneth complained of a headache and general weakness. The patient was complaining of a headache.