First, the interesting thing about the sweating issue is that you'll notice that your head will sweat, as well as other parts of your body, but the palms of your hands typically stay dry. Strange...
Dr. Braak's staging theory was discussed quite a bit, with constipation issues, loss of smell, and sleep disturbances being present before the onset of motor symptoms. While there is much debate surrounding his theory, it certainly held true for me. I had all 3 of those issues prior to my motor symptoms manifesting themselves.
I like when they (doctors and researchers) bring up these types of issues (including pain and depression) because it just helps remind me that the "things" that are going on with my body aren't me just being crazy or paranoid - they're very, very real issues.
It was a good, informative conference.