I am new to this forum- I am in the process of a 9 month rule out other diseases. Symptoms initially started out as balance issues and weakness on the left side-leg and arm/hand- had 2 falls. I have torn both knees that have required surgery to repair over this past year. What's been ruled out- stroke, MS, lyme disease, all tick born diseases, heavy metal poisioning. Discovered have a B12 def. which I have corrected with injections, symptoms worsening. Also MRI of cervical showed bulging disc at 3-5-7 no compression- (7/11 repeated 1/12 No change- compression-they ? cervical myelopathy- hard collar made faciculations increase. Have a positive babinski to left foot, and starting with foot drop. My fatigue is debilitating so tired trying to get around. Have a follow up with neuro this week. My PCP is going to call ahead and request EMG- haven't had emg or nerve conduction test. Have had a total of 6 MRI of head- so have been assured no stroke no MS which is good- Any other tests?