"early signs of hearing loss"

What If You Suddenly Cannot Hear One Day? Sudden Sensorineural Hearing Loss, Do Not Miss the Golden Window

How startling would it be if you woke up one morning and one ear suddenly felt muffled and could not hear properly? As if submerged under water, sounds hum and echo, accompanied by a ringing sound in the ear. This describes sudden sensorineural hearing loss, which can arrive without warning.