Why is it that it does not happen all the time?

[Guest guest]

I have just finished a two day venture ( what would normally be an ordeal).  I attended a pasta making course (great by the way) and have had relatives down here that are very... well scrap a lot when they eat. But there is a big BUT, to start with and for the majority of the time it did not effect me!

Why is it, that sometimes this condition is so unbearable and at other times its like living in a world with out 4s. why is it so on and off? If it is more biological then psychological would it not be effecting us all the time regardless of the situation, and if so then the gaps diet would not have a huge effect on it... Does anyone else experience days and moments like this, where for some time they are living in a world without 4s?

R