I feel well today.

我今天很好。

youdao

"Finally I've been able to pull my head above the water; I feel well now," he says.

“我终于可以浮出水面喘口气，现在感觉好多了”，他说。

youdao

I don't feel very well.

我觉得身体不太好。

《牛津词典》

And I feel like having dealt with adversity really helps me to lead a group of men through difficult times as well."

VOA: special.2010.06.02

And they said, "Well, I'm sorry you feel that way, it's incorrect, and you have to take it anyway."

但他们说：“很抱歉你那么像，这是不对滴，你一定要学它“

麻省理工公开课 - 化学原理课程节选

Even though I wrote the presentation, I feel like I don't know the information well.

即便我已经把报告写下来了，我还是觉得我没有好好掌握其中的内容。

I'm worried 实战 - SpeakingMax英语口语达人

When I feel well, I pack in as many experiences as I can.

NPR: Live Your Life So That You Will Have No Regrets

All in all I feel pretty well.

CNN: Injured Kubica 'satisfied' with progress

"I feel I have been playing well with Celtic, but you are always judged on goals as a striker, " he said.

BBC: Referee Vladimir Hrinak prepares to book Kenny Miller