I think it does not have to be related with dissociative disorder. What I perceive from your situation is, that it's completely normal to "fight" against your body when you don't want to do something but your MI tries to make you do it against your will.


You got triggered. You already knew touching an animal is inappropriate. Your trigger created a psychological stimulus, which in turn created a desire to touch the dog. You knew that was bad. So, I think that the answer lies in body language. You had an impulse to touch the dog (you lent forward), you knew you should not do this (you lent backward) and so the cycle continued for a while with the addition of other things such as movement of arms, and legs and the rest of your body parts.

Should you tell your therapist this? Yes I think so. But should you be worried? Obviously not.

Now, I am not a psychologist so I have no idea about the mechanism behind dissociative identity disorder, but I don't think it's the driving force behind your jerkiness.