Stress? What stress? Not from leading the country, that's for sure. He spends less time when in the White House on presidential business than any officeholder in memory. Rush or Levin will occasionally read his daily schedule. He hardly has a briefing until mid-morning whereas Bush had it very early in the day.
The only stress I see him having is the stress of campaigning - he spends at least twice as much time with campaign appearances than he does with his presidential work.
The stress of having a carefully orchestrated persona start
to come unglued causes major stress, especially if you are a
Malignant Narcissist.