Hey! – We took our girl to her appointment yesterday and the vet said that everything seems normal (temperature, eating habits, energy level, etc.) so we were directed to just keep an eye on it for now. There isn’t any point of origin around the lump so the vet speculated that it could possibly be a hematoma from playing rough with other bigger dogs at daycare. It doesn’t appear to have changed in size, but Norma’s (our puppy) disposition seems just slightly off. She vomited a little bit this morning as well, but she did also get a Lyme’s vaccine yesterday so there are a lot of factors at play. She’s staying home from daycare today and my partner is keeping a close eye on her. Thanks so much for your response and for checking in!! 🙂