why would a 20 year diagnosis of ms get nixed with 2 negative mris but diagnosis was made by a positive spinal tap I have constant headache balance problems, Vision is now blurred. Was sent to the er last night by primary care doctor because neurologist said it was anxiety. Also I have dimished strength on right side and pc wont refer to another neurologist because this guy is ms specialist. I feel like **** and my job involves driving every day. Please help I dont know if I should change Pcp neurologist or both