State the parentheticals as your response and stop her in her tracks. Get a discussion going so you and she are clear about what each other is saying. Knowing you feel invalidated, accused, angry, disapppointed, etc. is only half the battle; it's good you can identify what you feel but you have to express it to the "other" so it can be checked and you can better understand each other; it does not make sense for her to invalidate, accuse, anger, disappoint you does it? She obviously is not aware of how you are hearing what she is saying. She won't/shouldn't guess, tell her!

What was the point of your story? I feel invalidated.
Why are you asking me that question right now? I feel accused.
What is your attitude toward ADHD medication; from what you just said, I feel you don't approve of it and, since I take it, we have a problem if that is so.
Why are half of my brownie bites gone; I suggested you and I bond over food, not you and every tom, charles, and harry in your practice!@#$#