You are not mental, these things happen, you just want to be your therapist caretaker sort of speak, my t always reminded me, she was the one taking care of me, it was not my job to take care of her, I use to always worry, like when she had allergies, i use to remind her to take her meds, she would be so sweet about it, she would appreciate it, but reminded me that she was ok, not to worry about her.
I know its difficult, but if you start worrying about your t, you lose all concept about your therapy , your focus is now on her. Best wishes.