I've now watched the video and was relieved to hear he's taking a break to take care of business, not that he has health issues. Last night I didn't watch it because I have a lock on YouTube in the evenings to keep me from watching too much there.
With other YouTube videos I get impatient and wish they'd get to the heart of the matter quicker. Andy's are very slow but all that detail and clear explanation, along with his voice and personality, is so reassuring and soothing that I really enjoy watching for hours!