I had this problem badly last year and am now getting it under control and know im on the path to clearing it. It can be cured, don't worry. It is a physical symptom and the psychological fears are secondary. You need to change your diet to make sure you get the minerals and vitamins your body needs for the processes that are currently malfunctioning. My issue stems from a poor thyroid but its the adrenal affect it has that causes the cortisol surge and interupts digestion, compromising the intestine that let candida gain hold.
Everyday i eat: 2 brazil nuts (magnesium) handful pumpkin seeds (zinc, selenium) 1 egg with large pinch salt (sea salt is vital) dark greens, 1 lemon (vit c) No sugar, white flour etc and Lugols Iodine.
Its working for me but please educate yourself this is my case..it will take time! Wish you well )