Sorry for the very long post! We have an almost 3 year old goldendoodle. he is a great dog with no apparent anxieties except for one big one-separation anxiety. He is not even hyper attached to us. He is not destructive and he doesn't pee or poop, but he howls and barks a lot. We have been working on this for almost his whole life now. We have used Julie Naismith's SA protocol, we have hired 3 different trainers, we have tried every calming supplement that is out there, and we even resorted to meds for awhile. When we first started we got him to the point where he was relaxed enough to sleep, but when he woke he was always in a panic. Then we let him bark a bit after he woke up because it seemed like they were mostly protest barks. Then it progressed to howling. Now, we seem to be back to the beginning. He won't relax enough to sleep, and he can barely be left alone for 15 minutes. He is off the meds because we could never tell if they were helping or not. Dr. Jeff suggests to just let him bark and howl, but I know that he won't stop and if we really want to have any kind of life is it really okay for him to be barking and howling for 2-3 hours? Part of me wants to go back to the start and try the very very slow desensitization again, but my husband is against this. He says we already went back to the beginning several times and it hasn't helped. The other last suggestion from his "regular" vet was to try him on a dose of trazadone before leaving. I am at my wits end, and I have been really struggling emotionally with this for a long time.