1 sentence

1. 他最近总是头昏脑胀，无法集中注意力。

   tā zuì​jìn zǒng​shì tóu hūn nǎo​zhàng, wú​fǎ jí​zhōng zhù​yì​lì.

   Lately, he's been feeling dizzy and lightheaded, unable to concentrate.

   Source: Dong Chinese Dictionary