Popping in really quickly before my last test. Guess what? I have asthma!
I am totally shocked, but I did have a reaction to the methacholine. I got an increased sensation of heaviness in the chest, and it was noticeably more difficult to exhale forcefully. My results were indicative of mild asthma, so not terribly worrisome, but there was a measurable difference nonetheless.
So when I see the pulmonologist again this afternoon, I will ask him if this is another fringe benefit of Sjogren's

or a separate problem altogether. Don't know if this is enough of a problem to treat, but it's good to know what's going on. Those Sioux Falls docs who blamed my shortness of breath on deconditioning were definitely off base.
Don't know if I'll get to post again before I get home, so I'll just say here: thanks for all your responses! Like the Grateful Dead song says, what a long strange trip it's been!
fanfaire