my dad went into emergency surgery for a clot in his leg before this he was a 61 health man he was in surgery for 6 hrs came out being sedated for 3 weeks 2 of it he was on propofol and incubated now that he is off he has no body movement beside is arms and that is very weak, he zones out for minutes at a time, slur words, and sometimes talks like he is back in vietnam war... is this all side effects from propofol?