groggy
/ˈgrɔgɪ; `grɑgɪ/ adj
(-ier, -iest) weak and dizzy (after illness, shock, lack of sleep, etc); unsteady （生病、 震惊、 睡眠不足等之後）虚弱的、 眩晕的; 不稳的
The attack of flu left her feeling very groggy. 她患流感後非常虚弱.
He's still groggy from the anaesthetic. 他用过麻药, 现在仍眩晕无力.