get up on the wrong side of the bed 醒来心情差／吃错药了

Hello, 各位亲爱的朋友大家好，今天和大家分享的是：

get up on the wrong side of the bed 醒来心情差／吃错药了

A: I'm sorry I yelled at you. I think I must have gotten up on the wrong side of the bed this morning.

B: Don't worry, I understand. It happens to me all the time.

(A: 我骂了你，很对不起。我想我今早一定吃错药了。)

(B:别担心，我了解。这种情形我一直也有。)