Pardon?

Three years ago my doctor told me I was going deaf...……………………………….......I haven't heard from him since

A man went to his doctor and said. "Doctor, doctor, I've just accidentally swallowed some scrabble tiles"
The doctor said "You didn't choke on them, they are not poisonous and they should pass though your body and out in a few days"
To which the man replied "I am worried that my next poo could spell disaster".