Prejudice about recommending bowel surgery to schizophrenics

I am in something of a quandry, I read on google that while there are about 100 operations available for prolapse, just one operation doesn't often do the trick, and two can be more successful, statistically.  However I have a problem in that the Consultant is unwilling to send me for a second op, even though this might put things right, as she has latched onto the fact that I am a schizophrenic and is taking a biased approach and trying to tell me that my symptoms are "behavioural" despite my frequent protestations that they are simply not and I am responding to a purely biological need to open my bowels, way to frequently.  I have put up with these prejudices for over four years, what do i do?

It is pointless telling me to get a second opinion as I already have as the last one had prejudices just the same and was just as bad.

Well, from the lack of response it seems everyone else has been silenced on the subject of prejudice in rank and file medicine?

However I KNOW it hasn't only happened to me from talking to other patients and what my common sense screams at me about the facts of life