Thanks for your input stumpy.

The green lolly isn't yellow because I couldn't be bothered to search for hours for a picture of a yellow lolly. So it's green, although I have never had a green one before to be honest, usually orange ones but... nevermind!!!

It's possible that other crunchy food stuffs do the same thing but I haven't researched it that much. Just noticed that I love to eat a kitkat occasionally but am doomed not to enjoy it. I know that my hearing will return eventually, but perhaps need to write a note to self not to eat kitkats in future.