What is going on? All my medical test come back normal, yet I feel terrible! Candida is a fungus that normally lives in a healthy balance with other bacteria and yeast in the body. However, certain conditions can cause it to multiply, weakening the immune system, causing an infection known as candidiasis. Symptoms often worsen in damp, moldy weather. If you live in a location with these conditions do you have unexplained health conditions? When foods containing sugar, vinegar, and/or yeast are eaten symptoms worsen. Some symptomatic examples could be, fatigue, tiredness, daily headaches, depression, environmental sensitivities, vaginal yeast infections, and ED.