Hi Bunny,
I remember I felt a lot of anger early I sobriety and then flashes of anger, I have mellowed out somewhat. I experienced and do experience the flatness you are talking about, I can relate. It seems odd that your sponsor would question you about not crying. As for finding a spiritual experience via an established religion that's up to you, reading William James , The Variety of Religious Experiences may be of interest to you.
Anyway I read your post with interest and a lot of empathy.
All the very best and would like to hear how you get on.
CaiHong