[vpretzel]

As someone who has been profoundly Deaf since infancy, i found your description of auditory testing to be spot on.

I am not an expert by experience but what you have described sounds like a possible Auditory Processing Disorder (https://en.wikipedia.org/wiki/Auditory_processing_disorder). Experts in this disorder are very limited but there are strategies available for managing APD. However there is rarely a silver bullet for hearing disorders.