Your 13-year-old dog shaking and panting likely signals pain (like arthritis), anxiety (dementia, fear), or an underlying illness (heart, kidney, Cushing's), as these symptoms in seniors often point to discomfort, cognitive decline, or disease. Immediate veterinary consultation is crucial to diagnose the specific cause, which could range from dental pain to serious organ issues, and to get a proper treatment plan for their comfort and health.
In their old age, a dog's body goes through changes much like ours do, and these can sometimes lead to shaking, panting, or other signs of general discomfort. One of the most common issues older dogs face is muscle weakness and joint problems, such as arthritis.
What are the main signs and symptoms dog's back legs not working?
You know your senior dog is suffering when you see significant changes like mobility issues (limping, struggling to stand), behavior shifts (irritability, anxiety, withdrawal, restlessness, excessive vocalizing, or loss of interest), appetite/thirst changes, breathing difficulties, incontinence, or increased panting, indicating pain or declining organ function, not just normal aging, and warranting a vet visit.
Last Stages of Congestive Heart Failure in Dogs
Difficulty breathing even while resting, frequent bouts of coughing, bluish-grey color gums, fainting when rising to stand and a reluctance to walk are all common signs of the end stages of congestive heart failure in dogs.
Once diagnosed with congestive heart failure, dogs can live anywhere from six months to two years. Your dog's life expectancy depends on their age, the severity of their condition, how responsive your dog is to medication and any other underlying medical conditions.
End-stage Congestive Heart Failure (CHF) involves severe, relentless symptoms like extreme breathlessness (dyspnea) even at rest, profound fatigue, significant swelling (edema) in legs, abdomen, and neck, a persistent, hacking cough (sometimes pink/frothy), and potential cognitive issues, all stemming from the heart's inability to pump effectively, leading to fluid buildup (congestion) and poor circulation (hypoperfusion). Patients often experience rapid or irregular heartbeats, loss of appetite, weight changes, and general weakness, indicating the need for palliative care focusing on comfort.
Recognizing Changes in Behavior and Personality
One of the earliest signs your dog is dying of old age is a noticeable change in their behavior and personality. Senior dogs may become more irritable or withdrawn. They might show less interest in activities they once loved, such as playing fetch or going for walks.
Silent pain in dogs refers to chronic or ongoing discomfort that isn't obvious through visible signs like limping or whining, but still affects their behavior, movement, and well-being. Pain and behavior are closely connected.
Key Canine End-of-Life Indicators
Signs a Dog Is Dying
Dogs are intuitive, emotionally attuned beings, and while they may not understand death in the same way humans do, many exhibit signs of awareness as their bodies begin to shut down. For families, this can be a time of deep sadness, uncertainty, and reflection—but also of love, connection, and comfort.
There are many reasons why a dog's legs may appear to give out. Common reasons for hind leg collapse in senior dogs include osteoarthritis, intervertebral disc disease, metabolic disorders, vestibular disease, heart disease, and degenerative myelopathy.
Changes in Breathing Patterns
Dogs may start panting even while at rest, develop a cough, or have increased difficulty drawing a normal breath. This can be secondary to heart failure; respiratory diseases; cancer; or a metabolic disease such as diabetes, kidney failure, or liver or adrenal gland disorders.
If you notice these signs, try to quickly remove them from the situation or distract them. Give them a safe space. Train your dog to associate their bed, mat, or crate with positive things like treats, toys, and uninterrupted rest. You can use this safe space to calm them when they're anxious.
High blood pressure: Hypertension can occur in pets with kidney disease and may lead to additional complications. Trouble regulating body temperature: Pets may struggle to regulate their body temperature and show signs of fever or shivering.
The 3-3-3 rule for dogs is a guideline for the adjustment period after adoption, outlining three phases: 3 Days (decompression, feeling overwhelmed/scared), 3 Weeks (starting to settle in, learning routine, personality emerges), and 3 Months (feeling secure, bonded, and truly at home). It helps new owners manage expectations and be patient as their rescue dog transitions, emphasizing calm energy, routine, and space in the early days to build trust.
To say "I love you" in dog language, use soft eye contact, raise your eyebrows, give gentle massages (especially ears), lean into them, and engage in play or shared activities like walks, which build trust and affection through shared experiences and physical connection, releasing oxytocin for both of you.
Other Signs Of Pain Or Suffering
Interestingly, some dogs may also perceive when their own death is near, exhibiting behavioral changes that veterinarians attribute to their ability to detect metabolic changes in the body.
Signs of kidney failure in dogs often involve increased thirst and urination, lethargy, vomiting, weight loss, bad breath (chemical odor), pale gums, and mouth ulcers, stemming from the kidneys' inability to filter toxins, leading to dehydration and toxin buildup, requiring immediate vet care.
Even though I've participated in these experiences, there's no way to know for certain what's going through a dog's mind in their final moments. We do know, however, that they are at least aware that death is near by sensing the changes that are happening in their bodies.
Sometimes other symptoms occur before sudden cardiac arrest. These might include: Chest discomfort. Shortness of breath.
Hospice Isn't About Giving Up
It's not a place to speed up the process of dying. A doctor suggesting hospice does not mean they're giving up on providing care and medical treatment. It's end-of-life care, but this doesn't mean giving up hope. It means shifting focus from curative treatments to comfort and support.
Cheyne-Stokes respiration is a breathing pattern with cycles of deep, rapid breaths followed by slow, shallow breaths and pauses. It is common at the end of life and signals that the body is shutting down. This pattern is not dangerous or painful but can be hard for loved ones to witness.