Hey all, First time poster here, long time Berner lover. I just accomplished my lifelong dream of having a Berner of my own, but unfortunately things aren't going perfectly for my little guy He's just over 10 weeks old today, and today he weighs 7.6 lbs. When I picked him up from the breeder, I could tell immediately that he didn't have the "mass" that an 8 week old puppy should have. Despite his Berner fluff, you could feel his ribs, spine, and hip bones easily. We took him to the vet and she had us switch him to canned food to try to beef him up and get him growing. At 8 weeks of age when we first picked him up he weighed 4.7 lbs. Despite the breeder seeming to be forthcoming, honest, and reputable in the beginning, that all fell apart once I picked him up. She wouldn't tell me how big his other siblings were, and she failed to tell me that he was the "runt" of the litter until the day I was picking him up. And clearly the fact that she sold a puppy in such an underweight condition does not sit well with me. I thought I had done enough research and everything seemed to be appropriate with the breeder, and I feel like I was totally duped. I already feel awful that I ended up buying from a breeder who in the end was not looking out for the breed, so please understand I already know that something major was not right with the breeder and be gentle with me. I already feel absolutely awful. I've been researching a lot the last few weeks about normal Berner growth, and his weight has definitely bounced back a lot since getting him on a mostly canned diet. We've had him on Wellness canned puppy food with a little bit of dry food mixed in. He's been on the canned food for about 2 weeks now and all was going well until 2 days ago when he developed watery diarrhea. It got better for a day, and now today it's back. He lost 0.25 lbs with the diarrhea, which obviously he can't afford to lose. We have an appointment with the vet for tomorrow to get him looked at yet again. I guess I'm just looking for words of wisdom or advice on what to do with such a little guy... He has tons of energy and spunk, has a great appetite, knows how to sit and give paw already, but I find it SO disheartening and heartbreaking to see "normal" puppies weighing 2-3x what he weighs. I'm terrified that this diarrhea will set him back even more if he has to go on a bland diet... Anyone been in these shoes before?? I want to help him but feel so powerless. Thank you all for having the patience to look through this and for any help that you may offer me!