beside oneself with   (TTS發音)

at the end of one's control…得發狂；…得要命

    She was beside herself with joy when she got the letter. 收到那封信，她欣喜若狂，高興得要命。

    He was beside himself with grief. 他極度悲傷。

    Jane has been almost beside herself with toothache，but she will not go to a dentist. 簡牙痛得要命，可她就是不去看牙醫。