My T has shared her history and it mainly helps although at times I feel bad because I'm sure her abuse was worse than mine. She shared it by saying that our histories were very similar during a time I was talking about having been sexually abused so it was not an explicit retelling of her story...that, I would have found intrusive.

She also suggested a history of depression when talking about the fact that she had been through therapy itself. None of that bothered me at all.