Thank you very much. I will book a GP appointment and get back to you. Difficult to think i could have a vit deficiency as my diet is so good but i'll definately get it checked out. The only other clear explanation for my problem would be something to do with my neck. I have a mild prolapse disc shown on MRI but the docs said it couldn't affect the nerves in my face and wasn't anything to be concerned about. However the more reading you do on the net the more you see contradictory opinions.