My entire right eye feels bruised? It is not swollen but when I blink or touch the area it is very tender and sore like a bruise?

It looks completely normal but it feels like a have a black eye. It has been like this for 3 days now

Gert2016-08-23T09:03:08Z

Sinus infection.

John2016-08-23T09:00:01Z

Probably cancer