be worried

I'm worried.

私は心配です

I'm worried about my little son's high fever.

私は幼い息子の高熱が、心配です

I'm worried about my little son's high fever all night.

私は幼い息子の高熱が一晩中、心配です

I'm worried because my little son's high fever won't come down all night.

私は幼い息子の高熱が一晩中下がらないので、心配です

I'm worried all the way to the emergency room because my little son's high fever won't come down all night.

私は幼い息子の高熱が一晩中下がらないので、救急外来へ向かう間、心配です