behind eye aching

I am on day 7 of aching behind my eyes, I think in the upper socket areas.  It comes and goes, usually more in the evening.  I kept thinking I was getting a headache, but it never turns into one.  Tylenol and Advil don't seem to help.  I don't have any other symptoms, no sinus congestion, fever etc.  For about a week prior to this I felt ill with  a strange feeling of carsickness, like I might be coming down with the achey (achy) flu, but never did.  I took lots of ibuprofen and tylenol all during that week.  I don't know if this is related or not.  By the end of the day I just want to close my eyes.  The ache doesn't change if I move my eyes around.  Last night I woke up in the middle of the night and it was back. Usually sleeping provides relief, but not last night. I have not noticed any change in my vision whatsoever.  

I have tried to search online for possibilities.  Could this be optic neuritis, even without visual changes?

At what point should I see my family doctor or a specialist?

Any help would be greatly appreciated.  I thought I would wait this out, but it doesn't seem to be going away.
Thank you

[John C Hagan III, MD, FACS, FAAO]

You are at the point that you need to see an ophthalmologist (Eye MD) and your family physician. Optic neuritis would not be a likely cause. It the problem is not related to your eyes then sinus disease would likely be the most common cause.

JCH III MD  Eye MD