Started on the NDT 5 days ago, and feel fine apart from very slight internal shaky sort of feeling, in the legs/knees. It almost feels like when you get hungry, and need to eat something. It's not there all the time, comes and go and is very minor. Otherwise, I don't have any other problem so far. I'm taking 1/2 of a grain so far, split into two doses. 6 am and 1 pm ish, with a view to increasing by another half after 7 - 14 days.