I Had Sudden Onset Of Double Vision 5 Days Ago.

I had sudden onset of double vision 5 days ago. It started in the morning and had gotten worse by mid-day. I was taken to the ER. They did a CT and took a number of blood samples testing for C-Reactive protein, CBC, ESR, Borrelia, Electrophoresis, Protein, BF, EBF. All came back normal. Yesterday I went to an ophthalmologist who found nothing and ordered more blood draws and an MRI which came back normal. I still have double vision in both eyes that gets worse at times and blurs. Sometimes I see up to 4 images. It does not seem to be getting better I think I should see a neurologist, but no Dr is making that recommendation. But, they are not making any recommendations. Could it be a pinched nerve that a Chiropractor could help?