I didn’t watch the video, I believe I have seen what you have described. One dog with idiopathic epilepsy did very well on a low dose of phenobarbital for over 10 years.
Another dog had neurological damage related to Lyme disease, but the focus was on treating her symptoms of kidney disease caused by the Lyme. She would do the rug eating (pica) stuff occasionally, heartbreaking to watch.
Another one had hemangiosarcoma, I think it spread to her brain as she had neurological symptoms, I had already had all kinds of diagnostic testing done and was told the cancer had spread….no treatment options.
PLEASE TRUST YOUR VET, the anticonvulsant meds will keep him comfortable.
I hope you don’t fall down the anti-vet homeopathic rabbit hole. I almost did.
Go to skeptvet dot com and ask a question, nothing is being sold there.
It takes a while for your comment to show up if you are new because they don’t allow bullying and hate rantings and do a bit of screening before posting.
Of course he has not examined your dog, so he cannot give you specific advice.
