normally they would need to look for brain and spine lesions to confirm ms. that's interesting that you've been dx'd with just two spinal lesions.
have a read of my signature links (below) for dietary recommendations by others. you could also look up terry wahls, swank diet, paleo diet, etc.
i have a thread on nutrition in the regimens section which may interest you.
my approach: no meds so far - just nutrient-dense anti-inflammatory whole foods, and supplements where needed
info: www.whfoods.com, www.nutritiondata.com