My son is 19 months old and has had elevated lymphocytes for the last 5 CBC'c (complete blood count) that he has had. A month ago his lymphocytes were at 81%, they are supposed to be between 20%-30%. Today his lymphocytes were at 74%. He is always so sick and I was wondering what this means and what could be wrong. They did a peripheral blood smear but it came back as his platelets had clumped so today they did another. He has been vommiting a lot lately and has had a fever up to 103.3. Any advice would be appreciated!