Hi and welcome. I am no expert, can only speak for myself and what i have read or learnt in therapy.

I, like you, put all my memories away and spent years also putting away the emotions, so for a long time in the beginning I either felt nothing or didn't allow myself to. I believe on e of the things that can be common with PTSD is emotional numbing......where you just don't 'have' or allow emotion. I understand it is a defense mechanism.....I fall back on it frequently, but am beginning to see that it really is not useful.

Have you thought about talking to your T about this, asking him to explain exactly why he thinks this is the right diagnosis for you?

And.....you can't mess up in therapy, it is for you, so whatever you need to say ought to be ok. Good luck and take care