Hi Jesse,
When I told my mom, I did the same things you did.

It was a pause and go kind of thing until I finally blurted it out.
What a stress relief that was! Good for you!!
I think you shouldn't be upset about the psychologist your mom asked you about. She is just getting to understand this whole lifestyle. There's so much to take in.
I didn't show my mom my clothes, but I did show her my Girl Talk Magazines. She asked all the normal questions, "Are you gay? Do you want to become a woman? . . . " These are just two of the questions you'll hear people report they were asked, when someone finds out about their CD'ing.
Her reactions of acceptance followed by a hesitance may be for other reasons. Don't get into her mind though, because most likely she's not thinking what you're thinking. The best avenue for communication is to ask her what she's thinking. You've opened up to her, why not continue to improve on your communication? Seriously, you deserve major kudos for what you've done already.
Even if she says something that could hurt you, I'm sure it will be because it sounded right for her in her mind. She's accepted you already, now you'll just need to grow with her. Trust me, this will also help when you meet someone special.
We are so all here for you, it's not even funny. :!::!::!:
Feel free to contact me if I can ever be of any help or if you have a question.
Your very open and honest post is a great step towards acceptance of yourself and innocently you've most likely helped someone who was were you were "X" amount of time ago.
Best wishes!!!
Beauty