No, I think that'd be very unlikely because it'd be a late symptom after substantial damage has been done. Compared to the frequency of syncopal episodes I'd e

No, I think that'd be very unlikely because it'd be a late symptom after substantial damage has been done. Compared to the frequency of syncopal episodes I'd expect in people sick with any other cold or flu, I think it's overwhelmingly more likely to be from other causes. And if it actually were causing neurological damage, I'd expect still more causes like seizures and the like.