How to fix auditory processing disorder?

Hello doctor,

I have a chronic migraine for almost five months now, no medicines or treatments have worked and transferring to a hospital with more resources soon.

Over the past few years, I have noticed that I am having more and more trouble hearing. You could knock, walk into the room, and ask me something, and I will not know you are there. Alarms will go off in other rooms for more than ten minutes and only after I am aware they are there and I actively try and hear it else will I hear it at all. The bell in my high school has gone off and I have not noticed it, if I listen to the audio without subtitles I cannot figure out what is being said.

I cannot understand the phone calls, and often in conversation, if someone does not speak clearly and at a good volume I will not be able to hear and understand what they are saying at all. I also have occasional pain in my inner ear, the pressure that feels as though my ears clogged even if they are not. The other day my hearing was tested at an ENT and they told me my hearing is perfect, and that auditory processing disorder (APD) was a possible answer but that if so there would not anything to do. I have looked into APD and it was described as almost auditory dyslexia which does not sound like an accurate description of what I am dealing with. It is hard to process what could be going on based on the fact that my ears were tested to be in perfect help. If you have any insight or advice, I would love some guidance.