Ooops. Sorry, misunderstood the question.

I am not sure if it will ever go away. For thirty-nine years I have lived with it.

I was a ten-year-old you couldn't even take to the fireworks. It was awful.

But I can tell you, for me, it goes through different levels of intensity.

If I am stressed to the max, a pin dropping will set me off. And vice-versa.