Im 16 F and have severe ME. I have to have a root canal treatment in a couple months and experience extreme autonomic nervous system dysfunction triggered by stress which is completely agonising to me and leaves me bed bound for days to weeks afterwards. I was wondering if anyone knows if i can access further sedation through the NHS? (not the usual numbing injection they give ) I need something that will keep me calm or even knock me out completely in order to sit through the procedure but my family dont have the money to go private.