hi there, thanks for asking. She may have fibromyalgia
and it should be explored more. Actually many people who have fibromyalgia, also suffer from sleep problem and depression
. In many cases, their situation is improved with some medication from the class of SNRI. She can ask her doctor about it more. Oxycontin
withdrawal can also cause the sleeplessness
and some other things that you mentioned. It can be wish fibromyalgia as well. Its treatment could be with some medications from the class of alpha 2 agonists. Best wishes.