I have been suffering of imbalance, exhaustion, lack of focus and nervousness?

I am 27 years old female.
I have been suffering of imbalance, exhaustion, lack of focus and nervousness…and I have also been suffering from pain in my right area of stomach comes and goes for a while.
So I made a complete blood test to check up, and the result shows lack of white blood cells (3.4) and high lymphocytes percentage (60%).
With this comment: mild leukopenia. relative lymphocytosis with few reactive lymphocytes.
So please I want to know what does it means and do I have to make any further tests?