I'm pretty sure I texted my wife at least once after we got Chester saying "I'm just going to run away and never come back." Yeah, it was pretty rough If he wasn't chewing on everything he was biting me, or maybe pooping liquid poops all night long(at least he went outside! But I still got zero sleep for days at a time). He had Giardia, then he just had random bouts of diarrhea which we now have under control kinda(not sure, the Tylosin still isn't done yet...). Things really started to turn around once we started really training him. Took him to a puppy fundamentals set of classes and then to an 8-week obedience course. We're not done yet, but those two things have made a huge difference in his behavior. He's still only just about 5.5 months old, so we've got a ways to go but things are a hundred times better now than they were when we brought him home at 10 weeks.