No sauce at the moment, but I seem to remember a health concern about seizures during confirmation hearings, but the threat was determined not to be serious.
Perhaps only prone to seizures when Ghislaine Maxwell is about to be arrested?
cripes...I could have looked before asking the question...sometimes I look for the easy answer...sorry about that.
Back in 2007
https://www.cbsnews.com/news/chief-justice-john-roberts-suffers-seizure/