Dear Madam, your symptoms could well be related to neuropathy,but tingling sensation
only on the tongue seems unlikely to be a result of it. You would generally have associated facial weakness or difiiculty in swallowing along with it.As your neurologist
had adviced ,its better to get an MRI
of the brain done to be sure that there is no ischemic focus in the brain. Hope you find my answer useful.Take care.