I am a 39 year old woman and I have just been diagnosed with idiopathic PN.

My symptoms started as tingling and numbness. And now 6 weeks later it has progressed to burning pain and muscle twitches. Lightheaded feeling and shaky feeling. I am very scared.

My doctor did a lot of testing and everything came back normal. My B12 is very healthy at 900. And everything else is picture perfect.

The reason I suspect autoimmune is because my symptoms started one month after I had a flu shot. I suspect the flu shot somehow triggered an autoimmune reaction. And I read that once it becomes an autoimmune disease, it will never get better on its own and will always progress. But my doctor doesn't think the vaccine was the reason.

Anything test I can ask for? Anything I can do? Thank you so much in advance.