Be careful about chiropractors/massages etc, I have had these done over the years and not had any negative reactions until recently when 2 attacks seemed to co-incide with me having a heavy massage and seeing a chiropractor.
Is it possible that it could've been the chiropractic work and not the massage, or perhaps the particular type of massage? I have had massage in the past and I found it very helpful for dealing with neck and back pain problems that were lingering on after a car accident several years prior. I'm currently having some tight muscle problems in my shoulder and would get more massage for it if I could afford it. The massage work that I have had always left me feeling very relaxed. It never triggered any problems related to my MS but may have actually been helpful for it instead with respect to dealing with tight muscles. Of course, the practitioner giving the massage can make a big difference also.