Today, I went to the gym. It was a good visit, fifteen minutes on the bike and fifteen on the treadmill. At any rate, I walked out of the gym coughing, which I always count as a success, never mind what I’m coughing up in the first place. Now I’m thinking about my mental health in 2019. Don’t get me wrong–I’m not trying to sound ominous. Really, I just mean my overall sense of well-being, which, if I’m honest, varies from day to day. Some days I feel positive and optimistic, while others I get a little down and pessimistic. Part of this, I think, comes from my childhood and…