Can anyone advise? My daughter (12) has been unable to attend school for almost a year due to extreme fatigue and an irreguar sleep cycle. We are about to start melatonin but have had little success with the 2mg dose and seem to be finding it difficult to get someone to prescribe more even with her ASC diagnosis. Her sleep cycle moves 12 hrs every 2 weeks and then she will skip a whole night leaving her exhausted and in a state of brain fog. Her apetite also suffers hugely. She complains that her mind is racing and she is unable to slow it down in order to relax. TIA