December 29, 2015: About 30 minutes, crescent border in the upper right.
December 27, 2016: About 30 minutes, small central migrating to lower left crescent, mild vertigo.
May 21, 2017: About 30 minutes, medium central, decayed into a crescent left side border, very mild nausea.
June 12, 2018: About 30 minutes, small central migrating lower left crescent, migrating to upper left crescent.