I work in a private hearing aid shop and you should not have been prescribed aids if you have wax in your ears. Our audiologists always go back to someone once the wax has been removed to do a hearing test. Also Liljan if your aids are whistling you may have a bit of wax in your ear or aid which is causing the sound to "bounce off" the aid causing the whistling. Also, we find our clients are getting younger 50 onwards think this us due to all the loud music we used to and still do listen to. Hope this helps.
Fashion for short, overweight woman
To think that London, or anywhere else for that matter, does not belong to any one demographic