morning rage

H is 67 years old and has untreated ADHD.  He has had a successful career and has recently retired.  

In my opinion, he does not sleep well; there is a TV in his room, so when he awakens, the TV immediately is turned on, no matter the time.

H is very agitated in the morning and becomes angry over insignificant things and basically goes on a screaming, profane rampage.  BTW! This is NOT new behavior.

Would appreciate others' input.