I have a friend who suffers with Fibro. She has had fibro for over 10 years, so obviously she knows what being tired and fatigued feels like and what is "normal" for her... The past month she has been VERY sleepy, exhausted, and able to sleep during the day...which in the past she has NEVER been able to do! She will literally go to lay down for a few minutes and be asleep within minutes. She has had days where she has slept all day, and still been able to sleep at night. She has had low potassium for about a year now. About 2 mths ago she took potassium supplements. Her potassium level was 3.0. She took 99MG 4 x a day for a month, they retested her levels and it only went up to 3.1 She has been very concerned about the potassium. I went with her to her Dr. Appt today. She did tell the Dr. she wanted to get to the bottom of the low potassium. The Dr. thought maybe it was her water pill, but she has been taking 99mg of potassium 6x a day. The Dr. Said she was going to test her Iron, Potassium, and do an Epstein barr test for the chronic fatigue. She also gave her a Myers Cocktail. My questions: Do you guys think the Dr. is doing everything she can to help figure out what is wrong with her potassium. Her kidney functions are fine, the dr. immediately ruled that out a few visits ago. What can the Epstein barr test do? How will it help her? Will it tell her how fatigued she is? She has fibromyalgia, does the Epstein barr test show how sever that is? Has anyone else has hte Epstein barr tested and i guess i just want to understand what the POINT of this test is? Thanks!