My 19-month-old dog is shivering, whining, and looking out the window.

Hello, thank you for using Petco Pet Education Center, formerly Petcoach. If your dog is otherwise acting normally (eating, drinking, peeing, pooping) and not coughing, sneezing, having vomiting or diarrhea then yes, he could be smelling females in heat. If you are not planning on breeding him it is suggest you have him neutered. Many dogs run away in search of females and they can be difficult to manage. It is healthier for them overall to be neutered if not being used for breeding. Hope this answers your question. Best wishes!

If only Cane could talk! If he does not improve within 24 hours or if he gets worse, have him examined by the veterinarian. Here is some good information about anxiety. He may not have separation anxiety but the information will help: https://www.petcoach.co/article/separation-anxiety/ https://www.petcoach.co/article/7-natural-treatments-for-dog-anxiety/ I also recommend to have one or both dogs altered. A pregnancy at the female's age could be dangerous for her health. There are many benefits of altering pets (both males and females): https://www.petcoach.co/article/spaying-ovariohysterectomy-the-benefits-in-dogs/ https://www.petcoach.co/article/benefits-of-neutering-castrating-male-dogs-puppies/ I hope this helps.

This could be a delayed grieving from loosing his mate. I would try some calming pills like vetriscience composure and a calming collar like adaptil. These will hopefully take the edge off to help him. If not, I would consider talking to your vet about starting him on an anti-anxiety medicine to see if this helps. I hope this helps!

Are any other behaviors abnormal? Is he acting painful or sick? Maybe take him for a walk and see how he does away from the female. If you are still concerned that there may be a medical problem then I would recommend having him evaluated by a veterinarian. If it is just the female bothering him you may need to keep him somewhere else for the next 2 weeks or so. Best of luck and thank you for using Pet Coach.

By your description Charlie is not neutered? If he seems ok otherwise then I am suspicious of an in heat female in the vicinity. If this is the problem the hopefully within the next week or so he will calm down. Of course, it is never wrong to have him Seen by a veterinarian to make sure nothing else is wrong. I hope this was helpful!

How frustrating for you! I'm afraid it's hard to say why he might be doing this without more information to go on - sometimes it takes a bit of detective work to figure these things out, since he can't tell us why he is doing this :) If your dog isn't neutered, one possibility is that there may be a female dog in heat somewhere nearby - this is a very common cause of male dogs acting restless and unhappy, shivering, and attempting to escape their yard. If he is neutered, then it's possible that he is anxious about being in the yard for some reason, or that he may have some type of medical problem making him feel ill - some dogs prefer to be off by themselves when they don't feel well. You could try a DAP pheromone collar or a natural calming supplement like Zylkene or Composure to see if this helps, or ask his veterinarian if they can think of any reason why he might be doing this, since he/she would have access to your dog's medical history and may know more about what might be bothering him.

You may want to have your dog neutered. He is likely smelling females in heat and wants to go look for them He likely is losing weight due to the hormonal stress, as smelling females would not make him interested in food. He will possibly need worming and a top quality food such as by Royal Canin, or Iams or Hill's. You may want to change to another veterinarian who will actually try to find out whether your dog is ill or not and does not just tell you to let him go (whatever he means by that).