The lavender town syndrome, doesn't make your ears hurt instantly, according to the 'legend' you have to spend a while in the town, since it is caused by a metal 'bubbling' sound around 40 seconds into the music. The syndrome has been found out to not cause people to die, that is just how stories spread, one person hears it and tells it to someone else making an error in the story it repeats till everyone hears the worse telling of said story. And i doubt you have the correct cartridge, it apprently only happened in the Pokémon Red/Green 1.0 Japan version.
When released to the rest of the world, they corrected it, so, no I do not believe you have the syndrome.
gone.