You can adopt your own pet , local pound , shelter, aspca or a neighborhood litter of unexpected puppies, You can get your pet listed as a ESA.. The link that Signblinded posted ( thanks) gives you all the information you would need to have basically any furry friend deemed a ESA if he/she is social, trained and safe to take around other people.

My Dog is a lifesaver. Can't imagine life without him.

As for your Pdoc and him not wanting to give you the actual diagnosis? Maybe you need a second opinion ?

Good luck

Ps..Owning a pet is expensive.. Medications, flea and heart worm monthly. Feeding , grooming, if your unable to do the needed bathing etc yourself , vetting , not to mention any emergencies that can come up at any time.

Owning a pet is a huge responsibility.