my ex mother-in-law,maybe in her mid 60's,had a heart attack this past tuesday,i am now imformed she has three blockages,and triple by-pass surgery has been scheduled for next tuesday,my ex came by last nite and was telling me about this.i am writing to see can you possibly put any light on the fact that she has become irrational,mean,delusional,parinoid etc.. she is carrying on conversations with people whom are not there.