Why is my 6-month Pekingese breathing fast and shaking suddenly?

Thanks for using Petco Pet Education Center, formerly Petcoach! Rapid breathing can be a sign of many conditions such as pneumonia, bronchitis, heart disease, among many other possibilities. I recommend that you have Peaches evaluated by your veterinarian for further assessment and treatment. Likely diagnostics to be performed include thoracic radiographs and bloodwork. Inappetence could be due to this or in reality it could be that she has another condition also causing her not to eat such as pancreatitis for example. Treatment would be dependent on findings. Good luck and have a good day!

I'm sorry to hear Chiquita isn't doing well. If she's seeming in distress, unable to breathe or is very pale/turning blue, or seems in discomfort or is disoriented, it would be best to bring her to a vet ASAP for care. Stress or pain can also sometimes cause these symptoms. Making sure there isn't a sudden stressor causing, or removing any sources of stress may help her to calm down, however if the symptoms continue or worsen, or new ones appear, seeking vet care is best.

Thank you for using Petco Pet Education Center, formerly Petcoach. It sounds as though your dog is in respiratory distress and should be seen by a veterinarian as soon as possible. Breathing problems are a medical emergency and should not be ignored. There maybe a life threatening problem.

If Bells appears to be in any sort of respiratory distress, I must recommend that you get her to an ER right away to be stabilized. If she is simply panting due to some sort of stress or discomfort, this is not necessarily required. Regardless, it sounds like she is definitely experiencing some pretty severe discomfort. I'm not sure what they did for her at the clinic earlier, but it doesn't seem to have addressed whatever it is that is currently bothering her. If these sort of symptoms continue into the afternoon today, I would recommend getting her into a clinic for a follow up exam and diagnostics to assess the problem. If they believe she is in pain somewhere, perhaps imaging would be next best things in terms of diagnostics. Hope this makes sense.

These can be symptoms of many serious medical issues, anxiety, fear, pain, neurologic disease, infection, etc. I would recommend that you have him checked out by a vet to see what could be going on. After a thorough physical exam and discussion of his recent history, the vet may recommend diagnostics, such as blood work, x-rays, ultrasound, etc. to diagnose the cause.

I would recommend that you have Bella examined by a vet as soon as possible. Open mouth breathing in a dog that is in a cool, comfortable environment can be caused by heart disease, lung disease, anemia, severe pain, among a few others. Rapid heart rate can also be caused by these things. When you get to the vet, they will do a physical exam and may recommend x-rays to make a diagnosis.

These are quite generic signs that may be generally related to pain/discomfort or high temperature (usually due to an infection). Given Charlie's age I would recommend a general check up and a physical examination to shed some light on the underlying cause and treat appropriately. The check up is necessary if other signs are present, like vomiting, diarrhoea, lethargy for example.