To Mayo or not to Mayo?

I have reached a dead end, I have had 25 years of Gastrointestinal trials. Including UC, surgeries related, hospitalizations! Since 2005 alone I have had 11 abdominal surgeries been near death more or less about 5x. The problem is that I know specific pain in my body is a precursor to major problems b4 tests confirm that anything at all is happening.
For example: my last endeavor was ultimately an absess that killed 9 inches of intestine and all of my organs were sick. Blood work, ultrasound, TWO Ct scans (one of which was not 24hrs b4 exploratory surg), showed nothing. I had been vomiting violently for a week prior. This was in 2010
So here I am again facing similar situation, pain unexplainable, test show nothing, all I can think is when will my body give in to what is going on. The abscess seriously almost killed me, the closest I have been.
I dont want to wait until it is too late, can Mayo help me? How can they help me? How can I get in?
Please any one help!!