This is the first time I've visited this thread and find it really interesting. On a different note -- after my third experience with atrial fibrillation, and some research, I find that it can be related to the MS (thanks Cherie). If that's the case, where would the lesion be located to cause problems with the autonomic nervous system? Most of my other lesions are on the spine, hence not being able to walk. Guess there was too much damage for the nerves to "re-route" themselves. I haven't had an MRI in years since my neuro thinks it's a waste of time and money since I "still have MS". What do you all think? I'd really like to compare the results with my previous MRI to see what difference the LDN has made.