No diagnosis yet

I am a neuro nurse and I am having the hardest time getting any help :} I am on a waiting list for an appointment for Mayo. My symptoms started last May. Tingling and crawling sensations on left side of face and in my ear. Slurred speech, weakness on my left limbs, double vision, difficulty swallowing, confusion, now constant muscle twitching in my left foot and sometimes both hands. Any ideas out there? I had a MRI and CT which showed no lesions yet, and the EEG was negative for seizures. That is all the test they have done since May.