I am ET JAK2+, 62 years old female diagnosed in November 2016. I have lost 3st in weight and still want to lose at least one more stone from my waistline. I have been going for walks and doing a yoga routine daily but the weight is not shifting, so I decided to bite the bullet and add aerobic exercises to my fitness routine. I must say I feel better for it but lately I have been a bit headachy when waking up in the morning. The headache goes as I get up and drink water and eat breakfast. Also I have been craving for sugary foods. Before I managed with very little sugar. Of course it could just be natural to want to have carbohydrates after exercise but all the health advice these days is against sugar. I try to have maple syrup and honey instead of white sugar. Anyone else have ideas on exercise.