Mono really??

Well as some of you know, I have been having lots of joint pain and feeling very fatigued for a while now. I went to the dr. a couple of weeks ago and they did blood work to see if I have rheumatoid arthritis. They said they would not give me any results until I go back to the dr. on the 22nd. So today I get a call from the dr.'s office and they said they didn't have the results for my arthritis panel but that I did test positive for mono. They think I have had it since November! I was, and still am a little shocked but I am really glad to know why I have felt so tired and sometimes just lethargic. Now I am on 2 medications for a month!! I will hopefully find out about the RA on Thursday and let everyone know how that turns out.