Hillary ClintonHillary Diane Rodham ClintonIntel Dem decries White House 'gag order' after Bannon testimony 'Total free-for-all' as Bannon clashes with Intel members Mellman: On Political Authenticity (Part 2) MORE is not yet making pro-con lists about whether to run for president in 2016.

“I’m just sort of living my life and seeing how it all feels to me,” Clinton said in an interview that aired Sunday on "CBS Sunday Morning.”

Clinton warned that whoever runs in 2016 should be focused on a vision for the U.S. rather than on playing politics.

“It’s not a contest for who looks good, and who can have a quick answer,” she said. “We don’t have time for that right now.”

Clinton also said that whoever becomes the first female president “has to recognize that the American political system is probably the most difficult, even brutal, in the world.”

She pushed back on recent questions about her health and any implications a 2012 head injury may have for her potential presidential run.

“I fell on my head and got a concussion and worked through the lingering effects,” such as dizziness, she said.

“That’s all gone.”

Clinton defended her run as secretary of State, a position she held from 2009 to 2013.

“I helped to restore America’s leadership,” she said, pointing to changes in the U.S.’s relationship with Iraq, Iran and Afghanistan as well as helping to reach a 2012 ceasefire between Israel and the Palestinian groups Hamas in the Gaza Strip.

Clinton also commented on recent developments in the realm of foreign affairs, including the U.S. government’s prisoner trade for Sgt. Bowe Bergdahl and the continued questioning of her role in responding to the 2012 attacks on U.S. officials in Benghazi, Libya.

Clinton warned against passing judgment on the decision to swap Guantanamo prisoners for Bergdahl, calling it a difficult decision by military leadership.

“It’s just a core principle, you don’t leave anybody behind,” she said, adding that she hopes for more clarification on Bergdahl's capture.

On the Benghazi attacks, Clinton said she recognizes that some critics will never be satisfied by her answers to questions about what could have been done before or in the immediate aftermath of the attacks.

“I did my best to fully cooperate with the Congress … but there’s a difference between unanswered questions and un-listened-to answers,” she said.