Thank you all so much for your advice !
My husband got a 2nd opinion, but keeps it all kind of secret; he did not want me to go along with him to the doctor. - He is not able to talk at this point, has a low energy level.
I had to fight to get his permission to tell our sons, who are young adults(20&22). - We all tried to convince him to approach a way to help him better.
I can do it again.
He has not informed his employer yet; he told me, he would be layed off.
Thanks again, I'll see what I can achieve & then, be back here.