Lola has started a nasty habit of growling at dogs she meets on our walks. She didn't do this at all when we first got her, at about 1.5 years old. She used to be really sweet. She was good to every dog, even if they growled at her.
Now she crouches down when she sees another dog. Sometimes she stares and trembles, if they're far away. If they get close to say hi she growls under her breath. Today she outright growled…like louder than usual. It sounded like she was getting all frothy at the mouth. So, it seems to be slowly getting worse. I don't want her to start snapping!
How can we train her to be nice and get all worked up? I know we're supposed to be positive when other dogs approach and to try and keep the lease loose. Maybe I should be doing something else? I don't know why she's started this. I feel like we've surly done something to cause it, since she never did it before. Plus, now I'm worried, which she's probably sensing. Thanks.