Freud was a Neurologist. After much frustration with illnesses that just didn't seem to have a Neurological Answer, he fathered Psychoanalysis. (this is a condensed cliff note style of the history of how a neurologist turned into a psychologist).

There was once a patient, codenamed Anna, that was rather immobilized by the undo stress and hardship of her own life. The more, Freud, had her freeform and talk about her life, the better she began to feel physically.

There is a term for this, somatization. Stress, is a funny little bugger in the emotive aspect of the brain, that can cause a physical reaction in the brain.

I'd imagine, that when your neurologist mentioned the concept that this is anxiety, after much testing and struggling to find a neurological answer to your health, he/she meant, anxiety is the probable cause of your physical symptoms.

Even neurologists, have a good appreciation(whether they wholly agree or not) for Freud. Neurologist turned creator of psychoanalysis. Meaning, they understand the notion that sometimes stress(an emotive aspect) can wreak havoc on the body.

So when their neurological testing results in clear findings, seriously, what else are they supposed to say, other than, anxiety could be the culprit?

It's obvious, distress is occurring in your life. Numbness, tingling, burning sensations, et al, are something to get treated. From one side of the brain or the other, get it treated and taken care of, please.