NUMB:
If a part of your body is numb, you are unable to feel it, usually for a short time:
- I was lying in a weird position and my leg went numb.
- My fingers were numb with cold.
Not able to feel any emotions or to think clearly, because you are so shocked or frightened, etc.:
- When she first heard the news, she was numb with disbelief.
- Ever since his girlfriend left him he has felt numb.
Source: dictionary.cambridge.org