My 5 year old experienced hot flashes from birth until now. She can’t handle the summer. She throws up from the heat. Before we go anywhere I have to go out and put the A/C full blast before she goes in. She even sleeps without clothes. It’s been this way since she was born. Even with the A/C blasting she takes her clothes off. The Doctor told me it’s normal but I don’t know. Her dad gets hot flashes too.