Good luck with it. I'd do it (take the leave) - like I said, it at least buys you a little time to figure out what you want to do, and helps relieve some of the stress.

(I've started tracking my stress recently - and wow! I am *always* stressed, apparently! So not good! So - I'm definitely in favor of reducing stress if you can!)

The vineyards sound like a really lovely environment to be able to work in! I can understand why you'd be reluctant to go back to the city, the struggle with the air quality sounds like it would be painful to deal with on a daily basis.

Good luck!