groggy
adjective informal uk/ˈɡrɒɡ.i/ us/ˈɡrɑː.ɡi/
（通常因疲惫或生病而）头脑昏沉的，眩晕无力的，行走不稳的
weak and unable to think clearly or walk correctly, usually because of tiredness or illness
I felt a little bit groggy for a couple of days after the operation. 手术后几天我都觉得有点头昏乏力。
Synonym: dazed