Is it normal for a 12-week old puppy to whine and yelp at 130 dB whenever I leave the room or put him in the crate to brush my teeth, do laundry, use the restroom, etc.? I have been fortunate enough to spend basically the whole time with him for the last two weeks, but that will be ending as I start working more (pretty flexible schedule, but still). It really sounds like the pup thinks he's dying when I leave the room. Is this separation anxiety or some normal kind of thing? Thanks.