Oh man...I shouldnt google..its bad for ones health BUT I did find this

Symptoms of yeast and bacteria imbalance
For my son, yeast caused symptoms similar to phenol symptoms -- hyper and giggling, and sleep problems. Sometimes he would spin himself around in circles. When he had "brain yeast" [yeast in his brain, not his gut], it would cause other symptoms, like visual stims and sexual behavior [humping objects, playing with himself, etc]. Yeast can also cause cause red ring around the anus, "spaciness", anger and aggression, headache, head banging, sound sensitivity [holding the hands over the ears], climbing on furniture and jumping off, vestibular sensory issues, and other similar issues. Also, sometimes my son's bms went from being firm and solid, to looking "airy and fluffy", similar to sponge cake. Also, it looked like it had strings of melted cheese in it. But sometimes my son's bms did not look any different than normal, because apparently the yeast was in his brain, not in his gut.

For bacteria overgrowth or "bad" bacteria, parents report their child had poor eye contact, tantrums, hand flapping and stimming, frequent [5-10 per day] and nasty bowel movements ranging from real soft to liquid. For my son, his bacteria bms looked like diluted cottage cheese. Bacteria behaviors are commonly aggression and "being mean".

There are several different types of yeast, including candida, which appears to be the most common variety. There are also several different types of "bad" bacteria, including clostridia and Citrabacter F.

My son never had a yeast or bacteria issue so far as I know, until I began chelating with ALA, when he did develop his first yeast issue. Because ALA excretes metals thru the gut, it does tend to increase the possibility of a yeast issue in yeast-sensitive children. Some people also report an increase in yeast issues when using DMSA for chelation.

There is also an increased tendency to develop a yeast issue if your child has to use antibiotics for ear infections or other issues. So if you choose to give your child antibiotics for something, be sure to use one of the OTC remedies indicated below, or ask your child's doctor for a prescription for an anti-fungal medication to use along with the antibiotics.

Anti-virals [Lauricidin, olive leaf extract, Virastop enzyme, even vitamin C] can also cause yeast. With chelation [removal of heavy metals], my son's tendency toward yeast was entirely eliminated for about a year, until I started anti-virals. When I started Lauricidin with my son, his viral issues significantly reduced, but his yeast significantly increased. In fact, his yeast [in the brain, not the gut] from anti-virals was much worse than his yeast from chelation. More information on this below.

Yeast can be in other places besides in the gut. Yeast can be in the mouth [thrush], or on the skin [diaper rash area or feet/toes or other skin area]. My son also had yeast in his ears and sinuses, and in his brain. See ideas under OTC methods for addressing these yeast issues.