What's wrong?

怎么了？

I got a head rush from standing up too fast.

我起身太猛了，头有些晕。

重点讲解:

I feel a little dizzy when I get up too fast.

I got a head rush from standing up too fast.

“我起身太猛了，头有些晕”，英文里说I feel a little dizzy when I get up too fast.语法上没错，dizzy是有“头晕”的意思，但是口语中还有一个更地道的说法，即I got a head rush from standing up too fast, head rush更能体现那种“猛地 起身”的感觉。