Devon, I too have experienced these body jerks upon falling asleep. I have also experienced incredible feelings of falling or being lowered, or even lifting (almost like an out of body experience, etc...) It is common for people to experience many different feelings upon falling asleep because our sleep is actually divided into several different stages before actual REM sleep takes place. I think because we, as anxiety sufferers seem to be more alert, hyper-vigilant, and aware at all times, that we are a lot more sensitive to these feelings and sometimes easily frightened by them too. I can assure you it is nothing to worry about although I know it can be pretty frightening. Just try and let go and trust. All is well. :)
