My Partner Has Been Diagnosed With Chronic Fatigue. Also, She

my partner has been diagnosed with chronic fatigue. Also, she take something very much like duromine ever couple days to increase her energy level for a day or two, but then has a one or two very low energy days. I have a theory that the duromine might be causing this roller coaster highs and lows. I'm curious if you thik she stopped the duromine all together, the "chronic fatigue" might go away?