A good few years ago, long before blood test meters, I started to have nightmares which began not long after an insulin change. They were very bad and very scary and in each one I was being chased by something evil. It sounds daft but I always got the sensation just before I came out of the nightmare of floating down onto the bed, escaping from the creature that was after me.
I spoke these through with my GP as I was beginning to think I was going mad. He suggested I had some bread before bedtime as he felt I was going hypo when sleeping and this was the brains way of waking me. I have no idea if his theory is correct but the bread just before bed stopped them from the very first night I took it.
Bill