irritability

At one point, she asked whether the irritability and fussing some babies showed at the time of the shot could be early symptoms of neurological problems stemming from the vaccine that hadn’t been studied.

She insisted Marc fill the neurologist’s prescription for an anti-anxiety medication that diminished his irritability and agitation without zonking him out.

"However, the potential downsides include nutrient deficiencies, increased cholesterol, excessive hunger, irritability, headaches and reduced adherence over time," says Prof Misra.

He says that signs a child has become overheated can include confusion, altered mental state, irritability, a raised core body temperature and nausea.

Symptoms range from general irritability to nausea, headaches and fainting.