Hello Msdamd and thanks for posting, 

I'm afraid I can't tell you what this recent elevated lymphocyte count means, but it doesn't have to be CLL. The most common reason for lymphocytes to increase in numbers is infection, particularly viral infections which I think you already know, bear in mind that we don't always register having had viral infections if they only make us a little off colour.

Things like this are inevitably unsettling until you can get some answers, but I hope you can take some comfort from what happened before when you had a range of tests which ruled out cancer. Try and keep an open mind for now and talk it over with your GP when they are back and you have the chance. 

Best wishes, 

Julia