Hi carolinecutts

Welcome to NeuroTalk .

I am sorry to read about what you are experiencing.

A few thoughts:

The fact that your problems occur only on the left side of your body suggests a neurological problem to me. Can you see another neurologist for a second opinion and more testing? I doubt that your problems have anything to do with migraines (my partner sometimes gets them but her signs do not affect only one side of her body).

Elevated CRP can arise from an acute infection. When the infection is resolved CRP levels return to normal. Chronically elevated CRP can arise from auto-immune diseases with an inflammatory component but I don't know of any auto-immune disease which only affects one side of the body.

Best wishes.