Christians, would you find any distinction between a 'problem' someone had with something and a 'sin'?

I've thought about that too. I think that quite often, if not 90% of the time, the problems we have are a result of sin, either our own sins, the sins of our parents, or others around us, which includes generational curses too. My older sister had a personality disorder and I know some of it wasn't her fault and yet, her sin had a lot to do with making her condition worse. She was neurotic and had multiple personalities and was so very clever at deceiving people. We learn more as we get older. We need to learn to bind evil spirits and listen to the voice of the Lord, and of course stay abiding in Christ. She did try to get right with God before she died when she was in a position where she couldln't get away with all her tricks any more. She did read the Bible and believed. She died of alcohol related problems when she was almost 75. It was a miracle she didn't go long before that, but she pretty much gave up when my mother died at the age of 97. (I'm 69).