You could just have Exostosis, everyone 20+ has it to a "certain degree", commonly called "surfers ear" or "truckers ear".
It’s where the ear canal which is 3/16" to 3/8’ diameter (which is bone with skin over it) grows shut to protect the ear drum against the cold water or wind.
Being a long time all year round surfer, I’ve had 3 x Exostosis ops done, two on the right and one on the left.
The right needing done twice because here in Australia we drive on the right hand side of the car, that means the right ear cops all the cold wind on it with the window down.
Each time I ask for it to be bored out over size so I can then hear even better, it’s amazing you hear like a bat after the op.
In America Exostosis more predominate on the left ear, because you drive on the left and have the cars left widow down when you drive.
Moto, don’t surf, or drive the car with the window down.
https://d14fqx6aetz9ka.cloudfront.net/wp-content/uploads/2018/01/30152912/Surfers-Ear-1560x1013.jpg
https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcR-5Oiw0h8l5U6DJ2cxEaw8XOQfOqf0mY24Kw&usqp=...
https://www.google.com/search?q=exostosis+ear&tbm=isch&ved=2ahUKEwja4q2Ex4TvAhVVYisKHV4kCT8Q...
Cheers George