Abnormal cbc report. Serious problem?

Dear doctor i have allergic asthma and nasal polyp.Since last one year i am feeling fatigue and about last 15 days,some foul smell in throat and nose.My recent blood work report is showing mild elevation in gamma globulin value -1.71,no M spike seen and absolute lymphocyte count-3.5,RDW-16.5,platelate-120 with remark platelete clump and giant platelete seen other blood parameters are within range.I am little worried fir elevated gamma globulin.Is it due to something more serious problem?I have burning pain behind my sternum since last 2 yrs and during endoscopy in sept-17,single sessile 7mm polyp found on Ge junction ,which was found benign in biopsy.I am taking nexium 40 mg daily one time since last 15 months.