Thank you so much, guys. I was getting a bit worried, since he's never done that before (only saw him shake once when it was a bit too chilly outside for him). There was definitely door slamming going on this weekend
His schedule is all out of whack now, plus the whining at night is highly problematic, but he is healthy and happy otherwise. Hopefully he'll get back on track soon. Some people have no respect for others' household rules.