For those of you who have had it, what was something it did that has not gone away? I started getting unusually cold after I got over it, but I had it when I was 8-9 years old and I'm 20 now. I mentioned to my mom I was cold (when I say I'm cold, it's not a usual cold feeling, it's completely different) and she said I started doing this right after I had mono. I don't know if she just then realized that's when it started or if she always knew. Me and my parents never thought anything of it, we just thought I was always cold. So, how did it affect you and are you still dealing with something it left? What's weird is that it's an immune system disease, but mine has been 100% better since getting it and I was always sick before.