I didn't need any dental work. Even though its been 10+ years since my last cleaning, I only had two minor cavities that don't need to be filled. I do have two impacted wisdom teeth but that wasn't the source of my pain, according to the very nice dentist.
He told me to get to a physician because I probably had a pretty severe sinus infection.
So I drove across town to my usually-very-busy doctor's office and begged to be seen. Thirty minutes later, I was talking to my doctor's husband. He is another doctor in the practice and one of the oddest men I've ever met. After a quick exam he said "Out of 100 people I would see who think they have a sinus infection only 2 really have one. You are the one of that two that I would really encourage strongly to take antibiotics." Huh.
So after a long stop at WM to fill my prescription (we walked in 5 minutes after they closed the pharmacy for lunch) we are home and tired.
And I will never self-diagnose again.