I have an atypical lymphocytes 13 % slightly elevated wbc which is 10.50, normal differential count normal esr and crp.

Consider a workup: I'd be curious to see if these lymphocytes could have an abnormal clone. First step would be a repeat test. If still showing atypical lymphocytes, a blood test called a flow cytometry would be the next step. Most causes of atypical lymphocytes, especially in young patients, are benign. Talk to your doctor or try to see a hematologist if possible.