Hi Mouse
Just a thought, I get tingling down one side of my head some times, which is a lot better than it used to be. And neuro said it was migraine aura.
I recently saw the osteopath who said my neck was compacted one side.
He has done some pressure work there to releive it and for the past 3 weeks since he started. I have had hardly and of the symptoms.
Also I feel so much better in myself, I'm not saying you have the same problem but it might be worth a look at your neck area. Xx
Good luck and keep positive

Carole x ninelives