I just noticed a swollen area in Brutus’s mouth. It’s under his tongue and looks like a fluid filled sac. It’s really hard to look at or get a picture, I’ll try to get one. Is this an emergency? Can I just make him an appointment in a day or two? Just watch it? He’s 4 months old and hasn’t had any problems yet, I’m kind of freaking out. It’s pretty big but isn’t affecting his breathing or eating.