Thank you, Nata1980, for the kind words and support!
I've been thinking to suppress that catastrophic thinking about what ELSE could have happened when my son has his weekends with his dad...I don't know for sure and I know it's out of my control. I know all I can do is document, document, document, but there is that part of me that wishes I fully protect my son against his dad's alcoholism...I know that's not possible though