Yes, depression, and worse for me was anxiety, are both normal. But like OIB said, if it gets to be too much, get off to a doc see what he says. I have meds now, which should be fairly temporary, have wound up more at the doc dentist over the last weeks than I have in the last decade. Don't be afraid to go use those guys to help put your mind at ease, because the mental game now is the toughest!