look oneself

[look oneself] {v. phr.} To appear self-possessed and well; look orseem in full possession of your abilities and in good health; toappear all right or normal.

Mary had had a long illness, but nowshe looked quite herself again.

It had been a big night, and UncleJohn had been drinking freely, but he looked entirely himself after anight's sleep.

- Often used in the negative.

What's wrong withLarry? He doesn't look himself.