Any symptoms must warrant Consultatation if it is severe or persisting or recurrent.
Mild ear discharge for couple of times over a period of five months does not seem very severe.
Of course to be sure and confirm the state of your ear drums and canal you must consult an ENT at your convenience.
Next Steps
Meet an ENT specialist at your convenience and get an Otoscopic examination of the ear canal and drum
Health Tips
Never use ear buds
Do not try to clean your ears
Avoid high noise for long intervals