Well, my second depression in my late 30's came on so fast it was astonishing. I was standing in my living room talking to my family, and it looked as if all the lights in the house went out. My vision dimmed, my legs and back were constantly exhausted, and I completely lost my appetite. It never occurred to me to die, I just felt so beat - both mentally and physically. It was hard to concentrate and hold a conversation. It had nothing to do with attitude, it came on like a bad fever. After about 6 months it just lifted. Then I had another one come on about 4 months before the serious pain started in my sacrum. It too was extremely physical with no particular thought process preceding the onset. My basic personality is optimistic and hopeful, I exercise, pray, and meditate routinely. I grow most of my own organic vegetable, do not eat food with chemicals, and buy locally grown and processed meat, poultry, and fish. So, what's my point? Oh yeah, I don't see how depression/anxiety in connection with spondylitis could possibly stem from a negative attitude.