Can you have tooth infection even if no tooth pain is present? i feel pain at times but then it goes away and won't come back for a while

Yes: A tooth can be infected with intermittent pain and/or minimal or no pain. A thorough dental exam with the appropriate x-ray(s) can help confirm a diagnosis.

Yes: If a tooth abscesses the infection may drain into the mouth thru a fistula.Kind of like a pimple. As long as it keeps draining the presure from the infection does not build up and there may be no pain. If you are having occassonal pain you may have had a minor trauma to the tooth( like biting on something hard or possible irritation from decay) and there can be temporary pain. Have it checked.

Possibly: It is possible for a tooth to be infected and now cause pain, if the infection is draining then pressure will not build up. It is best to see a dentist to have it checked before you end up with a major life threatening abscess.

Yes: When the nerve in a tooth is death , there is infection present, sometimes with or without pain.