Sunflower, these symptoms sound definitely like candida; racing heart, diarrhoea, feeling slightly panicky and dizziness. The only thing I found to help was to stop taking any supplements, when I got these peak symptoms. Also anti-candida diet is a must, you should eat no sugar and yeast at all, sugar is bad for adrenals. Then you should sleep a lot (at least 9-10 hours per day) that helps with adrenal fatigue.