I think that he's completely recovered from his big surgery. He's regained all the weight that he lost while he was sick (and then some). He loves his runs and hikes. And he loves his time in the flowers. He loves singing, although his voice is changing due to laryngeal paralysis. It's huskier now. He used to be a tenor and now he's a bass.
He sleeps deeply during his down time (which is about 23 hours per day) - and is ready to go whenever fun is in the air.
Happy Black Dog Sunday.