My husband is type 2 diabetic with good readings most of the time. However he seems to get terrible mood swings - he literally will get up and bang that is it - major, major depression. It seems to take the form of a restlessness in him not knowing what to do or he will go to bed and sleep for hours..it may last for a couple of days and then just disappears...he can be as happy as Larry one day and the next it is just awful..they seem to occur about once every couple of months - this last one after a weekend of not so good eating and a lot of travel.... you read a lot about general depression but does anyone have anything to say about this kind of situation? very grateful..