I'm Currently Being Treated By Neurologist At MUSC In Charleston

I'm currently being treated by neurologist at MUSC in Charleston Sc. for possibly having MS. He's 95% sure that I don't have MS. I've had 2 spinal taps , a CT scan and several MRIs. I have had 2 ultra sounds and have Leeds then 50% blockage in my carotid artery. Have weakness in left leg and balance issues. Could I have had a mini stroke in the passed? Can they determine if I have?