Have you had weight gain with this?
I had mono for
7 months, and some of my symptoms were fatigue, joint pain (in my knees), low grade fever, heart palipitations, sever fatigue, sore throat, headaches, abdominal pain, etc. All the tests you had, I had, and they were all normal.
I'll give you some of the tests my doctors gave me. Did you get tested for EBV? I was positive for this. Fibromyalgia? Chronic Fatigue Syndrome? Vitamin D?