I agree that poorly is probably used more for children but i definitely commonly use it, omg who am iI know the term 'poorly' is an English saying but my understanding is that it's something said by a child or said to a child when they're unwell. Any of our English hamsters confirm? He keeps saying it and it's annoying me
My other half is from Nottingham and he says he’s “badly” when he’s not very well. Not heard it in my life and gives me the ick