Sooo I was in bad shape I MEAN bad shape. I didn't feel viral nor sick per say, just inability to produce energy and horrible PEM. Then I increased my dose of COQ10 from 400mg a day to 1200mg/ Day (400mg each meal). And I IMMEDIATELY got better. This is not the first time, I just never put 2 and 2 together since I used to change more stuff at once, but since I am stable I do not make Much changes to meds or supplements anymore. I also went down hill when I reduced it (TOO EXPENSIVE). I am wondering if somebody can test this and tell me if you (HAVE VIRAL UNDER CONTROL) and increase CQ10 if PEM goes away??? I even been walking aerobic??? I know I can crash but I am testing waters.