with in me i did have animalistic alters, not that they took on the appearance of animals just that their behaviors, attitudes, social, .....their sense of agency (a new diagnostic criteria for the USA, that means how and when they were able to take control, what their job, purpose, reason for being was, where they fit in with the system...) were animalistic...

example my alter known as the eagle had a human body because she resided with in a physically human bod, but had keen eyesight and fast acting, fast thinking, and could be quite violent and ruthless.

Her "sense of agency" was that her job, purpose, reason for being created was to protect at all costs, she would take control when paying close attention was needed, when around triggering people so to ensure the safety /survival of all, when perceived or real danger would act without caution either verbally or physically like the eagle by screaming\screaching and clawing with fingernails.

I also had many real pets which some of my alters could see and others could not because their sense of agency was stuck in a direct piece of time....

example my wife and i have both cats and dogs. before i was integrated some of my alters "sense of agency" J(job, purpose reason for being created how and when they were able to be in control) was stuck in a year where I did not have any pets. the result was they had no idea when my cats and dogs were around, they didnt acknowledge or play with them because for them they did not exist. they believed the date and time was that of which their sense of agency was. some of those sometimes felt my cats and dogs were hallucinations due to the fact that where their sense of agency was stuck at the cats and dogs did not exist.

I am glad that you are contacting your treatment providers. what i posed is just what was with in me and my system, your treatment provider will beable to help you to figure out whats what with in your own system.