Bummer, I hate to hear that, but I can send you to someone who might be able to help or at least answer some of your questions, my Wife Terri works with a animal behaviorist/veterinarian technician, she's out West in California, I attached a link to her web-site, go the "Dear Shannon" and ask her what's best for your doggie, she's great, you won't be sorry.

He's a cute little guy, good luck.

https://trulyforcefree.com/