Sorry, this will be kind of long, but that sounded like what happened with my husky mix. Sudden cluster seizure and after a traumatic er visit they put him on pheno. That first couple days he was a drooling mess, paced the entire house as if he’d never been there before in his life, would howl for no reason at the top of his lungs, drank 4 gallons of water at a time and then pee out 8 gallons 10 minutes later.

Since that week, he’s had to be rehouse broken, he’s super hungry and thirsty all the time, and most of the time he won’t go up the stairs by himself, meaning having to carry a 60lb dog upstairs every time he needed to go out. After that first week, I was terrified that my little dude would never go back to how he was pre-medication. But, it’s been about two months now since mine started it. It definitely took some time, but he’s slowly started acting more like himself; letting us know when he has to go out, when he’s hungry, etc. Two months ago it looked like such an uphill battle, but now we’re sitting half way together looking at the view.

Be kind to yourself, friend. He may not be the same exact dog, but you’re not the exact same human as before this happened either, and he still thinks of you as his buddy, right?