Facial tingling

I'm a 34 year old female who has been experiencing some tingling sometime prickling on my face, head and arm. Sometimes on the right side and sometimes on the left. I had a CT Scan but the found nothing. I suffer from anxiety and they said it probably comes from that.  I also suffer from muscle spasms in my neck which was shown in a MRI. Can somebody tell me what this can be? Is there any cause for concern? Or is there any other tests I should get done? Pleaase let me know. Its really un nerving.