This is how my physician exlained anti depressants to me. he drew a diagram of two arrows to represent the brain nerons and so on and a space in the middle. Then he said that with depression the electronic impulses pass between the two sides sometimes too fast and sometimes too slow. and that results in the person experiencing their moods switching from extreme sadness and extreme happyness. Antidepressants change the chemical between the two nerons so that the electrical impulses passes from one to the other at an eve rate not too fast and not too slow. This way the person does not experience extreme sadness and extreme happyness they instead stay in the middle neutral ranges.

DID people dissociate their feelings/emotions. which leads to the person not feeling anything they are numb.

I have DID the only time I could recognise a feeling was when I was experiencing the extreme happyness the extreme sadness, extreme anger, extreme.

Antidepressants keep people in the middle range so in order for me to recognise what I was feeling I had to go off the antidepressants in order to work on my DID.