I suspect I have a tooth abcess. My glands are swollen in neck and have ear and cheek aches. Started with diahorea and vomiting.

Question ? You've asked no question, but just stated facts. See a dentist to be evaluated and treated for any problems with your teeth.
DDS ; MD. Based upon your symptoms, it sounds to me like you should see both a dentist and a physician.
See a dentist ASAP. Don't hesitate to see a dentist first to determine what the source of your issue is. It could be an abscess, but more info is needed.