In The Great Gatsby, what is Nick Carraway specifically worried about at the end of chapter 4?it has to be specific.
Fitzgerald doesn't specify exactly why Nick says, "Something worried me." However, some strong inferences can be drawn.
Jordan makes it clear how much Gatsby loved and loves Daisy and how vulnerable Gatsby is in regard to Daisy. Gatsby himself did not ask Nick to arrange the meeting with Daisy because he feared Nick's refusal. Jordan says, "He's afraid. He's waited so long. He thought you might be offended." Nick realizes how much the reunion with Daisy means to Gatsby. This is no trivial social matter. He is being asked to become a part of a romantic drama involving a man he knows not at all.
Jordan's next sentence seems to push Nick into his sense of worry. She says, again in relation to Gatsby's emotions, "You see he's a regular tough [emphasis added] underneath it all." Jordan is saying Gatsby is a regular guy underneath his image, but the word "tough" has other implications for Nick at this time. Nick has just come from meeting Gatsby's friend Wolfsheim, clearly a gangster who has lived in a violent world. Furthermore, Wolfsheim was the man who "fixed" the 1919 World Series, suggesting the depth of his corruption and power. Involvement in Gatsby's life could mean involvement in his criminal world. Also, the memory of meeting Wolfsheim reminds Nick of Tom Buchanan, Daisy's husband, whom he and Gatsby had encountered that afternoon for a tense few minutes. Nick, it seems, has reason to worry.