I know he's aware of the worsening affliction, his body language and broken eye contact highlights the insecurity which accompanies his frustration.
I wanted him to hear for himself how prevalent it's becoming, and although he brought it to my attention by telling me he was going to blog about it, I'm not sure he realizes the true extent. So I secretly recorded him (sorry to be so sneaky my love) as he read to me from his post PTSD Defines Me in which he addresses the issue.
I've edited the audio for length and added some video footage to give you something to look at while you're listening. It starts out with him saying "um" several times which is usually the way he gets going when he's about to speak.
I used this with his permission after fessing up to my FBI style wire tapping!