have constant pain at back of skull, on 10 scale, constant at 3 but becomes disabling when heart rate accelerates. Went to dr who did not do MRI or such and stated based on location this was tension and dehydration. perscribed pain relievers and anti-inflammatory, yet this is 5th day and still symptoms are the same unless meds are in affect. What should I do now? Had a TIA fall of last year and concerned that this may be something more. Whom should I contact, a nuerologist?