Whats Wrong With Him?

I am a big fan of him both as an actor and even more so as a director. He is the only one IMO who makes what I like to consider the modern equivalent of Peckinpah films. Consistent high quality and auteurship in his films.

But there is something wrong with him. I watched the interview of him recently and he is constantly twitching and pulling at his face and cracking his neck. Is it possible he is schizophrenic disorder? I watched some interviews of him in the 80s and 90s and he was nothing like that. Is this what happens to some of us when we hit 60s?

Can this really be the end..to be stuck inside of mobile
with the Memphis blues again.