Yes, it is transference and yes it is possibly maternal. I am just coming to terms with that myself, but I am lucky enough to have a new T to help me work through it. I was surprised at the depth of the emotion I was feeling and overwhelmed with emotion (crying constantly).
I recently terminated with a T that I had been with for over 12 years. Not really my choice, but it was my choice. She "announced" that she had terminal cancer and that she might miss some appointments due to chemo. I freaked out. It hit me so hard like being run over by a rock hauling truck. I felt like a horse kicked me in the stomach. I could barely function let alone eat or sleep.
She tried to reassure me that she wasn't going to go anywhere soon and she was going to keep seeing clients until she couldn't physically do it anymore. She told me she had someone in mind for me, when the time came.
I couldn't deal with seeing her. How could I unload my dumb problems on her when she's fighting for her life. Made no sense to me.
Anyway, she at least had a name of a therapist for me to try. I checked with my insurance to make sure the new one was on the list and she was. I saw her. I liked her immediately. Next session with my old T, I told her it was our last.
I'm just wondering why, if your T terminated you, why she didn't at least offer to give you a few names to look into?
I spent HOURS on my insurance company website sorting through names and specialties and descriptions to get a short list of about 3 T's. Amazingly enough, the one my T suggested, was actually on my short list.
I hope you can somehow find a new T soon, even if it's short term, until you find a good fit, so you can work out these transference issues.