Under the weather.
More Traditional Proverbs:
If I have work to do, the sooner started the sooner through.Traditional
The rich add riches to riches, the poor add years to years.
Traditional
Pity the man who has a stranger's spancel on him.
Traditional
An aphorism is a proverb with long whiskers.
Traditional
An ounce of do is worth a pound of tell how.
Traditional
Blessed is he who has nothing to say and cannot be persuaded to say it.
Traditional