Infidelity Support Group
Any relationship in which one partner engages willfully in sexual relations with another outside of the partnership is considered to have experienced infidelity. This breach of trust is often traumatizing for the faithful partner as well as the relationship, and support is often needed to heal emotionally and to decide whether or not the relationship should continue after...

I hate to hear that you are losing weight and losing your hair, over this guy. No guy is worth this. You are way better than this. He is not even trying to act like he is married. He is a sloppy cheater. Almost like he wants to be caught, maybe for the thrill (?), and he knows you aren't going anywhere...
But you should go. You have tried everything. You tried counseling. He is still doing it. What else can you do??? He doesn't want to stop. I'm sorry and you are going to be okay. This is too much stress to handle and it's affecting you physically and this guy isn't worth that.