I tested positive for EBV in the late '80's, and was told that my titers were through the roof. The doc said (I'll never forget these words) "I've only seen titers this high twice before - you'll never be able to hold a full time job again for any real length of time."
Part of the reason I won't ever forget those words is I was a single mother of two very young children at the time!
I have been tested recently, and was told that they are still 'high', but I don't know what the numbers were.
My symptoms are like Cajungrl said - right in line with my symptoms of tbi's (tick-borne infections).