In the last week all of a sudden I'm getting pain on the right side of my head periodically and my right eye seems to be twitching frequently. It also appears in the last day or so my vision seems blurred in the morning. I have no history of any health issues and I'm a 41 year old female. The only thing recently I had done about a week ago was a route canal on my front right tooth. Is this something I should be concerned with? Other than these issues I feel perfectly fine, no dizziness or loss of balance.