Ironically as I recover I seem to find it harder to get off to sleep, in the early stages of my PCS I'd be totally worn out in the evening.

Over here we can't get hold of melatonin without a doctors prescription on the advice of a specialist otherwise I'd definitely try some. I take a magnesium vit and 50mg of 5-htp at bedtime and 50mg Nytol for when I wake up, not sure they are working any more. I'm beginning to wonder whether it has to do with how much brain stimulation I get in the day, I might try a day without the computer and see if it helps plus I'll try moving my vit B supplement to the evening too as MomWriterStudent does. I've stopped taking the amiltrytaline as it was making me feel crummy.