Like most opportunistic infections, Candida and other yeasts may increase during times of stress. This overgrowth leaks toxins into the bloodstream or other tissues, allowing antigens (foreign invaders) to set up residence in various bodily tissues. Antigens then trigger complex allergic reactions. (This might explain why most individuals with chronic yeast overgrowth develop food, inhalant, and environmental allergies).
Allergic reactions can manifest in a variety of symptoms: fatigue, brain fog, depression, joint and muscle pain, digestive disorders, headache, rash, and breathing problems. Inflammation of the nose, throat, ears, bladder, and intestinal tract, can lead to infections of the sinus, respiratory, ear, bladder and intestinal membranes. In an attempt to arrest these infections, doctors might prescribe a broad spectrum antibiotic. Such antibiotics promote yeast overgrowth and often times, additional symptoms. It invades the intestinal wall creating intestinal permeability. This allows toxins from microorganisms and protein molecules from your food enter the blood stream.
Remember, yeast feeds on sugars and on carbohydrates that easily convert to sugars. In turn, yeasts produce a series of chemical products as waste, among which are acetaldehyde and ethanol. Ethanol is alcohol, and there are cases of people who have never drunk a drop of alcohol yet are daily inebriated. Acetaldehyde is produced as the alcohol breaks down and is about six times more toxic to brain tissue than ethanol.