Can someone please tell me what the odds are of catching mono 3 times in 8 years??? Seriously!! For the 3rd time, I have a confirmed diagnosis of mono through a blood test! I'm just at the beginning of my illness... and know it is going to get much worse. The first time I really should have been hospitalized, but my parents refused. At one point I had a fever of 104.3 for 3 days, and couldn't physically walk without the help of our dog (otherwise I was so dizzy I would fall over). My spleen swelled, ...