In that case it might be an inner-ear infection. If you can still hear well, I’d suggest taking ibuprofen.
assitant
That sounds like a possible infection.
assistant
My ear feels really stuffed up and I'm having trouble hearing out of it. What could this be?
user
You might have an infection. Do you have a fever or other symptoms, or feel worse generally, than usual?
assistant
No, there is no pain in the ear or anywhere else.
user