There are some who say chronic illness (no matter how well controlled) can trigger depression.
My husband, who has prostate cancer, is now on an antidepressant. His cancer is post treatment and he is doing pretty well, but the chronic nature of it was bothersome. His primary doc was quick to point out that chronic 'anything' can cause depression. It may just be a combination of several 'anythings'. And being the holiday season, when people are supposed to be happy....it's just an added insult.
Don't feel bad about yourself. It's nothing you did or didn't do. If you are distressed, see your doc and see if a brief time with an antidepressant would be of help.
