That's a very nice post regarding your fast.
Congratulations, thirteen days is no small accomplishment in my eyes.
As for the congregation finding out about what your doing which might explain the weight loss, remember that many great religious leaders fasted for great lengths of time for religious purposes.
As for the shingles, if the body doesn't eat up the virus during the fast you could look into Miracle-Mineral-Supplement and Iodine.
I believe either one or both would take care of it for good.
Good luck with the fast! - very impressive.