(((((Abby)))))

My thoughts:

--make an appointment to see your GP. You feel unwell: tell the doctor.

--write again to T and specifically ask to meet to talk options. This would not be "negotiating", she would simply say what the choices are, as she sees them, and hopefully there is one you like, which you then pick.

--if you still don't hear from T: Is she part of a group? Call the office and ask them to help you pick a new T within the group, or at least to assign you one.

--don't contact the other group, as you don't find them helpful.

(((((Abby)))))