Hello, I am writing on behalf of a young woman who has suspected undiagnosed Ehlers Danlos Syndrome, POTS, fibromyalgia, Mast Cell Activation Syndrome and many associated problems. She has major digestive problems - pain, constipation - and recently has noticed her stools have undigested food in them. Over the last few days she has been feeling a strain in her right side, increased when urinates or eats, tonight experiencing alot of pain, feeling feverish, intensely cold and now sweating, a hardness/swelling in that area.Can you advise what this might indicate and what action she should take?