I have white yellowish discharge for over a month now and sometimes irritation that lasts only for 1 day or 2. can that be from stress and depression?

Need to be seen: Vaginal discharge has several causes. It can be completely normal, even if yellow. It could indicate a vaginal infection. I could indicate irritation from hygiene products such as washes or pads. The only way to know for sure is to be seen by a health care professional and have some tests done. Stress and depression do affect one's immunity, leading to risk of infection.