Hey everyone- I am writing this because I am trying to figure out a few answers. Please bear with me, I realize this may get a little long. One of my nearest and dearest friends decided to quit smoking last June. I am so proud of her, she did it completely cold turkey. No patch, no gum, no ecig, nothing. Prior to her quitting smoking, her and I were inseparable. We were as close as two people could be. She is the kind of friend that you share your deepest, darkest secrets with, have fun with, and finish sentences for. My husband was even a close friend to her. I just cannot put into words how much fun we all had, how close we were, etc. Once she quit smoking, she just totally lost her mind. It was like a light switch just clicked off. One day, she was my best friend. The next day, she just turned into a complete b**ch. Friends are understanding, compassionate, and totally accepting of bad days. I knew she had quit smoking, she was going to summer school, and I knew she was stressed out. Heck, who wouldn't be. So I let the snide remarks go. However, this phase never ended. It still hasn't. It has gotten to the point where she is just downright snide to nearly everyone in her life. Her behavior has become so bad that people avoid her just to keep her from being so mean. She has gotten into trouble at work and almost sent home for being insubordinate and mean. My husband works with her, so I know this info first hand. She walks into work and tells people to get the hell out of her way, to shut up, and she has alienated the majority of people who work with her. Her boyfriend of nearly a year doesn't know what to do around her. He is a really sweet guy. She just bites his head off over petty little things. He overslept one morning and didn't bring her a coffee and she ignored him for a week!! She is negative, snotty, and pretty much intolerable to be around. If you ask her how she is doing, she is never good. She is having what I would consider serious somatic side effects of depression or other mental health issues. She never has a good day. And she always blames it on someone else. If someone cuts her off on the highway, she will use that as her excuse for screaming and belittling people for the next 2 days. What I am wondering is this: I am strongly convinced that there are some underlying mental health issues that cigarette smoking suppressed. I cannot think of any other reason why someone would literally change overnight. I cannot stress enough how this literally happened in a matter of 24 hours. She went to bed one night as my best friend, and woke up the next morning as a completely different person. Unfortunately her mood swings are just getting worse. I am afraid that if she continues on this path, she will have noone left. She treats the people closest to her just horribly. Sorry for the long post here. I just wanted to hear imput from other people who have so courageously posted on here about the positive effects that smoking had on mental stability. I am just trying to seek out some answers as to why this is happening with this girl. I really want to help her, but I do not know where to begin. Thank you, in advance, for any help that anyone can give me.