What Causes Blurred Vision Along With Headaches And Dizziness?

My symptoms that I experience everyday include: blurred vision Headaches in a specific spot dizziness weakness in my right arm decreased sensation over the entire body. Pain that migrates up and down entire body Nerve pain- all kinds Muscle spasms and cramps Muscle tightness Balance issues a near constant buzzing feeling in my legs tremors- hands mostly but legs jump in there occasionally fatigue- sometimes severe tingling and numbness- not too bad but aggrevating Muscle twitches all over and every day constipation I cant focus half the time and I get confused sometimes. I recently started blurring words together We have found evidence of demyelination in my left eye. But, all other test have camback normal. My Last MRI was about 6 months ago. I have had a LP, multiple MRIs with and without contrast, CT with and without contrast, a mountain of blood work, and an EMG. everything camback normal except the VEP done at the optometrist. that was the demyelination we found.