Feeling weird - left work early last night (after 2 hours) cuz i just couldn't focus on work. Doc's office called and told me my dilantin level was 6.9, when it should be in the 10 to 20 range. i don't know WHY my level's going low. now i'm sitting around waiting for the neurologist to call me back to see what i should do - i'll probably miss work yet again tonight.