oh yes I have the same phenomena... actually... yesterday was one of these times... the pain was so incruciating so I just couldn't make myself relax and go to bed... didn't go asleep until 6 am this morning. I do think it has to do with the fact that I woke up yesterday morning after a bunch of strange haunting dreams... I felt very uncanny all day and the thoughts ran around like crazy in my head... one part of my brain "saying" one thing and the other another thing... I just couldn't shake it.
I'm reading your posts and even if I don't reply to all of them... I care a great deal.... please know you can pm me anytime...
I'm learning by reading your words.
Hang in there!