It still is not legal for me to smoke for medical reasons, this is a law that is going to be changed in the near future(i hope). Smoking gives me the ability to walk a bit better and is the only thing that works on my muscle spasimins. I get killer headaches and smokeing helps with this also. Yes a MRI and lumber puncture are the only ways to diagnose M.S, the MRI detect the liasions and the lumber puncture detects how much bacteria etc are in the blood system.