Hmm. I feel ya. I saw two Ts prior to settling on the one I have now. The first I didn't even bother telling about dissociation because I just knew she wasn't up to that task. The second I needed to know if she could help me or not, so I tested the waters by asking what she knew about dissociation (a lot of MISinformation about 'disassociation' it turned out.) I asked her to refer me to someone knowledgeable about dissociation, and got the referral to my current T, who in the first meeting also referred to 'disassociation'. I stuck with her because she had some very good tools that were immediately helpful for me.
In our second meeting she asked something along the lines of "How long have you known you have had DID?" (I had never mentioned DID, only dissociation) and we had a frank talk about it. It turns out she is not all that experienced with DID clients, but she is open to learning and is useful regardless. I am at a stage where I don't need her to lead the way, so it works.
But finding a T who can work with DID id kinda imperative when you have DID. Not much healing will happen if you aren't dealing with 'what is'. I hope you can find the courage to talk with her about it some more, and ask for a referral if she isn't going to be the one who can help you.