Talk to General Physician on Difficulty Walking/moving Fingers

I am having difficulty moving my having difficulty walking.I can walk but there is weakness in legs Sometimes I have difficulty maintaining balance but I donot fall. I have a current like feeling running through my head and limbs Things fall off more frequently from my hands and fingers get tired while I'm holding things for few minutes I have very stiff muscles in hands, legs and back.I have back ache as well I'm also experiencing vision changes Brain MRI is normal could this related to neurological problem?