Im in the uk & have finally got a print out of all my blood test results that the doctor says are all normal but I have checked & my igm is high from october last year & may this year. October igm 2.27 May igm 2.49. Lab range 0.50 - 2.00 Mid last year tests show ebv & cmv antibodies in my blood & herpies type 2 for years. Can anyone please explain what could cause high igm, what high igm means as all the info I have read says this means you have a recent infection but ebv is from years ago & cmv is from may last year? Igg & iga are all in normal range. Thanks.