I have had a tension headache for 2 months straight. I had CT Scans and it came back normal. I also have a slight pain in my tooth in the back. I went to a dentist and he found nothing. I don't know if the headaches are actually causing the tooth pain. I even wake up in the mornings with these headaches. I still workout everyday and its actually like while im working out it doesnt hurt as bad - but theres still tension. It has been debilitating me lately. I had my blood pressure taken like a month ago and it was normal.