I suppose a third interpretation is a combination of the two, she's exhausted and needs to take off even though it's a bad idea but she's rationalizing it as okay because she's buying the polls which say she's way ahead. In other words, she's seeing what she wants to see.
By the way, I seem to recall all the pundits over the last month crying about how amateurish Trump's campaign is and how he's not doing the basic candidate things. I'll be interested to see how the press covers Clinton taking weekends off.
She’s a horrible campaigner - the only election she ever won was a walkover in New York for the Senate. She beat Bernie with Super-delegates, and let’s face it, Bernie is a 75 year old kook.
She is better off when people aren’t exposed to her, so by extension she is better off not campaigning...just running ads and using the American [propaganda] media to be her mouthpiece. The more exposure she gets, the less she appeals. This is her strategy - as little actual exposure as possible. The fact that it fits in with her physical deficiencies is a happy coincidence for her. Not that this strategy has been a big winner for her, but for much more than just health reasons, it’s all she’s got.
As long as people don’t see much of her they like her better.