TOTAL BODY NUMBNESS - Help Please

I am 49 year old female, good health. Had seizures @ 17 & 24 yrs old and take Mebaral to control. Have had symptoms of pinched nerve in neck, treated with PT and Lyrica. While pinched nerve symptoms subside, I am having an onset of total body numbness. Started in my face, lips and back of throat a month ago. Mostly on right side. Within last week, spread to entire head, face, mouth and neck. Saw neurosurgeon yesterday, said I checked out fine in reflexes and MRI. Spine is in good shape.
I am not in good shape. I have entire loss of sensation throughout my body. Worse on right side, but evident on both. Today my feet are numb and palms of my hands are losing sensation.
Doc taking me off of Lyrica to see if allergic reaction. I hope so, but am concerned about my symptoms. Ideas anyone? Thank you.