Hi! So sorry to have missed this. You might want to re-post this in Dog Health so more will see it!

First, thank you SO much for choosing rescue! Been Mom to 2 rescued Lab x's and they're the best!

My first thought too was diabetes or a UTI. I'm guessing your vet did a urinalysis to rule out the UTI, bloodwork to rule out diabetes. Did she/he suggest cystoscopy or an ultrasound to rule out bladder stones, bladder or urethral anatomical abnormalities? My Cody had the same symptoms, especially the "leaking," especially at night or while resting and was diagnosed with with a urethral abnormality, common but mostly in females. No cure, but easily treated with a daily oral dose of a medication called Proin. Maybe you can ask your vet about this possibility. Hoping for an answer to your pup's issue, and sending love and healing prayers.❤🤗

https://vcahospitals.com/know-your-p...inence-in-dogs