I'm not a doctor or an expert by any means, but if it is anything, I think it COULD be CIS, Clinically Isolated Syndrome. Neurologists use pretty strict criteria to diagnose someone with MS and if this is the one and only indication of MS that you've ever had, it is likely CIS, if anything. Neurologists are the docs who work with MS so if you wanted to be very proactive and get some peace of mind, you could go see a neuro before your PCP if you can get in to see one.
Good luck! I hope it's nothing.