Hey, just a quick tip- it's probably best not to suggest specific diseases or suggest such a thing about notable figures (especially those whose health has an effect on their share prices).

It's better also if you can spell their names properly; "multiple sclerosis", a disease of the nervous system, isn't specifically describable as a neurological issue, however does cause many.

It's also just as likely that he was tired after having to travel and then appear on stage to talk about his competitors.