Thanks so much for your reply. My podiatrist has envouraged me to do some walking as I have been using my bike to get around as much as possible and so he said he doesnt really know how it will react to the orthotics adn I need to build up the muscles needed. I followed his advise this week and although I wouldnt say it has got any worse so far the other foot which never hurt before has started to hurt. I actually feel quite confused as I dont what is causing it and why it is not getting better. I guess I am more anxious at the momnet as I have trip for my PhD to Poland next week where I will have to do a fair bit of walking in the forest.