(((granite)))
It must be very painful for you right now. I know what it's like to loose the sense of what is real and it suxs. I don't get why your T was at your work...and why she would say such a thing to a coworker. Are you positive that's what you heard, or is it a little blurry?
It sounds like you might need a med evaluation/adjustment, can you tell your Pdoc what is going on? Or write it down for him/her?
I hate to see you in so much pain. I don't know what to say about your T...only that you shouldn't cancel your next appointment and tell her that you overheard her.