I'm sorry
Go ahead and email your new T if you think that would be helpful. It's really hard losing a T and then feeling rejected or like she doesn't care anymore. The fact that she called you back though, means that she cares. Her response may not have been about you at all. Maybe she had a bad day yesterday or morning and she wasn't being fully present with you.
I totally know how you feel though. I said goodbye to my old T last summer and called her in a crises. She was helpful for the 10 minutes I talked to her but she asked me to keep her updated so I sent an email two days later. I never got a response. However, she did talk to me on the phone again a few weeks later.
I'm sure you're overwhelmed with emotions right now but I would caution you in generalizing the 2 minutes, 14 seconds you talked to her this morning, to all of the good things she has said and helped you with while you worked with her
But again, go ahead and email your new T if you think it would help you!