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Question:

Dog has been lethargic and weak for weeks now. Vet is unable to determine the cause.

I'm really reaching out here because I'm at my wits' end. My dog, Bailey, has been incredibly lethargic and just seems so weak lately. It's been going on for weeks, and I can tell he's not himself. We’ve been to the vet multiple times, and they've run a bunch of tests, but everything keeps coming back normal. It's heartbreaking to watch him struggle like this, especially when he used to be so full of energy and life. He's been eating less, and his usual wagging tail now barely lifts. Has anyone experienced anything like this with their pup or have any suggestions on what could be wrong or what to try next? I just want my happy boy back. Appreciate any advice you all might have.

Answer:

Hello! I'm sorry to hear that your dog has been feeling lethargic and weak. It's understandable to feel concerned, especially when a cause isn't immediately clear. There could be various reasons for your pup's symptoms, such as chronic infections, hormonal imbalances like hypothyroidism, or even anemia. Sometimes, underlying conditions such as liver or kidney issues might be the culprit.



At home, ensure your dog is comfortable. Provide a quiet, cozy space where they can rest. Keep offering their favorite foods and plenty of fresh water to prevent dehydration. Monitor their eating habits, water intake, and any changes in behavior or weight loss.



Watch for signs that might indicate a more serious issue, such as persistent vomiting, diarrhea, severe difficulty breathing, or any sudden changes in their condition. If you notice these, it's important to seek immediate veterinary care.



For further guidance and a more in-depth evaluation, consider booking a video consult with one of our vets on Dial A Vet. This can provide you with additional insights and next steps to ensure your furry friend's health improves. Take care, and I hope your pup feels better soon!

Answered by

Louise - Senior Veterinary Nurse, Dial A Vet

June 19, 2025

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The "Ask a Vet" forum on Dial A Vet offers general information and helpful tips on pet health, but it's not a substitute for professional veterinary care. The advice here doesn't create a veterinarian-client-patient relationship, and our vets can't diagnose or treat your pet remotely. For emergencies or specific medical concerns, always contact your local veterinarian immediately. Your pet's health is unique, and decisions should only be made after consulting with a qualified professional. By using this forum, you acknowledge these limitations and agree to seek in-person veterinary advice for all your pet's health needs. View our content guidelines.
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