Hello yellowfrog268: I can't say I've experienced a particular rush of anxiety when in the process of falling asleep. However I have lost whatever "enjoyment" I used to get from sleeping. I've always been a person who needed allot of sleep. And I was always ready & willing to go to sleep when the time came. But, over the past year or so, my sleep has become quite disturbed & so, nowadays, I find myself coming up with all manner of ways of avoiding going to bed.

I wonder, in your case, if you have possibly acquired some new stress in your day-to-day life. If so, it may be coming out in the form of these rushes of anxiety when you're trying to fall asleep. I do believe anxiety will find it's way to the surface one way or another. And so in your case perhaps the rushes of anxiety you're experiencing are stress-related anxiety (whether new or not) finding it's way to the surface at the point where you're in the process of falling asleep. This would be my thought on the subject anyway.