Rio,
Sorry they couldn't find anything.
For a while when I was being told the Dr couldn't find anything wrong with me, or it was just in my head, I started to think I was going crazy.
However, pain kept making me go (and a fiance who cares a lot

), and 4 Drs later... diagnosis. The Dr who listens makes all the difference. You'll just have to keep trying.
Best of Luck

mj