You should have a healthy termination plan in place with her that you are comfortable with (number of sessions left, etc) and get referrals from her so you can start lining up another T...he or she will be part of your new support network. And if you have any friends who you can talk to about this or hang out with, do that as well. And we are always here for you.
Anyway, I know how you feel, my T terminated with me out of nowhere a few years ago, and I am still suffering from lack of closure...those last sessions are SO important.
And I am so sorry you are hurting so much. Hugs to you.