be worried sick

• 非常担心; 极其担心； 非常焦急

be worried sick的用法和样例：

例句

1. I was tortured by the thought of what might be happening to my son.
   想到我儿子可能会有什么遭遇，我非常焦急。
2. We were so worried when we didn't hear from you for three weeks.
   我们有三个星期没有收到你的信时非常焦急。