I stopped smoking a little over a month ago after smoking for 40 years. Overall my health is very good and always has been. Since I've quit, my breathing and sense of smell is much better, but I am very tired and feel achy all the time. Is this normal? I try to munch on carrots, celery with peanut butter, gator aide, and oatmeal, but I've still gained weight. Any advice would be greatly appreciated. Thank you for your time.