I would RUN not wait and get your docs to refer you to a Major MS Center near where you live for evaluation. Not a Neurologist that sees MS patients, but a MS Center with Board Certified Neurologists that their specialty is MS where they participate in the most current testing and research and evaluations. There is no "test" for MS, but there are several things they can do to evaluate and diagnose if it is MS or Not. If it is MS, then they need to treat you not only with Disease Modifying Drugs, but also if it is MS then there are immediate treatments to stop the symptoms you may be having and bring you back to baseline quickly (normal). 59 years old is late for an MS diagnosis by the statistics, but not impossible either.
If you are in the US, go to the National MS Society Web page and you can search on MS Centers close to where you live and do the research once you have found one to what doctor you want to see.
RRMS diagnosed 2006
Tecfidera Started April 2013