Have taken about 2.50 mg oF Xanax thoughout the day due to headaches/ anxiety. This is more than my prescribed dose to a but worried as to whetheri have accidently ODed. Felling pretty good (of course after this!) but is is safe to sleep without fear of not waking up?? Sorry stressing out a bit (obv why as to why was prescribed it in the first place! hope BL can put my mind as rest as would be nice to pass out right about now! x