Hi 42 yo male with no neurological history

I had a bicycle crash about 4-1/2 months ago, knocked out, gash on my head and excruciating neck pain in the days following. I say this because I think it's related but I don't know.

About 2 months later I started getting a vibrating feeling in my leg when I bent my neck. Over the last 2 months or so it's been getting progressively worse. It now involves every part of my body down to fingers and toes sometimes, caused by neck flexion, and to a lesser degree movement of my arms and legs. I have bad spells when it gets nearly unbearable. I also get tingling and vibrating (like a tuning fork) that persists in my arms and hands for hours sometimes. Weird sensations, things don't feel like the should when I touch them.

It flares up anytime I do any work with my hands, or exercise of any sort. Driving my car aggravates it but sitting in my car in the same position calms it.

I have had brain and c spine MRI and reports were normal for someone of my age.

My doctors have given me no indication that they have any idea, or quite frankly have not expressed any interest in diagnosing it. I have neurologist consultation in a week and a half. I feel that my health care provider is not treating it with the proper urgency. Best I have got is "there aren't many things that can cause it", "I think your ok", and "if it's ms there is no cure anyway"

What else can I do? Is it normal to take so long to attempt a diagnosis? It's quite a terrible thing most of the time.

Ben