Check Notables, Anon. There is sourced info there that leads to possible explanations.
It's much like Angela Merkel's trembling, Anon. Stress-induced. Non-epileptic. PNES. It's a sign of extreme stress.
His virgin daughters.
He said: “Please, my brothers, do not act wickedly.8 Please, here I have two daughters who have never had sexual relations with a man. Please, let me bring them out to you for you to do to them whatever seems good to you. But do not do anything to these men, for they have come under the shelter of my roof.”