Suggest Treatment For Headache And Fatigue Along With Heart Nurnur

my 10yr old daughter gets migraine type headaches and extreme fatigue. she has a heart murmer and is going for a heart scan on monday, could her symptoms be related although she can be fine for days even weeks then its like her body just runs out of energy. all blood tests are normal she s in bed and asleep before 8.30pm drinks plenty of water and eats fruit and veg.