Thanks Janie, that did help!

I just wanted to update:

I found taking on the salicylates challenge too much at this point as i'm currently coming off my PND medication. However, the irony of that is that what is supposed to be a stressful uncomfortable time (as anyone who's come off these types of meds will understand) has not been! I have hardly even noticed the reduction in my medication and i am sure it is due to the food changes i have made which are:

Avoiding almost all the food chemicals listed in the book (colours, preservatives, antioxidents etc), especially Annatto which i've decided is evil. I particularly noticed it in the yoghurt i buy my boys, and DS1 gets hypo and irate afterwards. I am so glad i linked this. For myself i have almost completely cut out dairy. I only have about 200ml either in coffee or cereal, and for me thats been the hugest change... i am no longer bloated, bowel habits have changed dramatically, and when on one day i did have several serves of dairy i found myself moody and with toilet urgency! So i suspect i might be intolerant to anything more than tiny amounts. I have also cut out sweets & snacky foods instead eating almonds or fruit.

So this has been a great experience. I'm not sure when i'll get the energy to take on the salicylate challenge, but for now the benefits have been really good so i'll be sticking with it.

Thanks again for all the support & info.