1. If you're feeling up to it, there was something I wanted to talk to you about.

如果你觉得身体状况还不错，我有些事想和你聊聊。

Notes: “feel up to something”表示“觉得能够胜任，可以对付某事，觉得身体能承受”。例如：

If you feel up to it, please start your work immediately.

如果你觉得可以胜任，请立刻开始工作。

As you feel up to it, you can start from jogging.

当你觉得身体已经可以承受了，就从慢跑开始锻炼。

2. Because it's a private matter. And I am in favor.

因为这是私事，而且我也支持。

Notes: “in favor”这个短语在这里表达的是“赞同，支持”。此外，“in favor”还可表示“有利于，被喜爱的”。例如：

I intend to continue my postgraduate study and my husband is in favor.

我打算继续研究生课程的学习，我的丈夫表示支持。

He is in favor of being creative in work.

她喜欢在工作中保持创新。

Our boss made a decision that is in favor of the young workers.

我们的老板做了一个有利于年轻员工的决定。

3. You tracked me down.

你打听了我的行踪。

Notes: “track down”的意思是“追踪，找到”。例如：

It was not long before the little boy tracked down his lost football.

没过多久，小男孩就找到了他弄丢的足球。