How do I determine whether it’s MS or not? Since 1 & 1/2 year I am feeling numbness in my right thigh intermittently that lasts for 10-15 seconds. Suspected MS and did contrast brain and spine MRI scan 6 months back, no lesion shown up in the results. I did an evoked potential test as well - results came negative as well. Still in confused state of mind whether I have MS or not?