Why is it that most of the time people talk about therapy dogs? I have a therapy cat with doctors papers. I hate flying, so he flies with me in the cabin. He is always by my side. If I've slept too long he will paw my nose and start licking it. He comes when I call him and he is protective of me (actually he is afraid of strangers)
I've other cats before, but this one fell into being a therapy cat category all on his own. Not sure what I would do if he were no longer with me.
If you feel you need the assistance, don't hesitate, talk to your therapist and start the process.