Dont know if it helps. I tend to have trouble sleeping, especially when I know I need it, having an early the next day for example. What helps for me is doing some kind of excercise during the day and then staying away from the telly during the evening, ending my day by reading a really boring book. I've read the same page of Franz Kafka's "the process" over and over again the past two weeks and it really works. Once I start yawning I hit the lights and I'm off. But I really need to be careful about it, following the same procedure every night, because once I miss that sleeptrain it seems to take forever before it stops by again. Anything that might catch my interest will keep me awake long enough to make me miss the first chance of falling asleep.
I don't have the same symptoms as you though so your situation does seem to differ. But whatever it is, it never hurts to provide yourself with the best possible ambience, keeping a good sleephygene.
Hope things work out
/LnS