I would definitely see a dentist as soon as possible regarding this tooth. From what you describe regarding the intermittent pain, there is a possibility that you are dealing with a root canal case. I would seek professional advice as soon as possible.
There could be a number of reasons for this tooth ache. It could be wisdom tooth pain or originating from another tooth which is potentially infected. There could be so many other reasons causing that tooth pain. You need to see your dentist immediately to address that pain. Delaying your dental treatment can lead to more painful outcomes and further treatment could be more expensive.
Richard J. Staller, D.D.S.