Qualifying exigency leave, like leave for a serious health condition, is a FMLA-qualifying reason for which an eligible employee may use his or her entitlement for up to 12 workweeks of FMLA leave each year.
Considerations. You can change your calorie intake during training if you feel it is necessary. If you're gaining weight, try eating 200 calories less per day. Likewise, if your training is suffering and you lack energy, you're probably not eating enough, so add in an extra 200 calories each day.
If running on empty doesn't feel good to you, you will want to hydrate with water and eat something light that digests easily. A good pre-run breakfast for those who run three to six miles can be something as simple as a banana, water and maybe a cup of coffee an hour or so before starting your workout. You could also eat toast with jam or half of a carbohydrate bar, if that works for you.