How do you get an older child to talk about their feelings and open up about more sensitive topics?

My 13 year old has always struggled to talk about his feelings. Usually if something is bothering him he will keep it to himself. I was more or less okay with that. Everyone has their own way of coping. Now it has progressed to where he completely shuts down anytime I being up a more sensitive issue. There was an incident recently that I know upset him but he wouldn't talk about it. I don't know that it's healthy to keep your emotions burried like that.I want to make sure he's doing okay. I have an older son so I know that these are some critical years coming up. He talks to me and opens up about other things but once the topic turns a little more serious he shuts it down and says he has to go do something else. The other day when we were talking about the incident that happened he got up and suddenly urgently had to do homework. This happens a lot.My husband has a dangerous job and he plays sports where he has to remain unphased by whatever happens, so I don't know if those things are part of why he feels like he has to bottle everything up. He was struggling with his dad's job when he was younger and we took him to therapy but he refused to talk. We tried another therapist and got the same results.He seems okay for the most part. He is close to his brother, has a lot of friends, is active and happy. It's this one thing that worries me as he gets older. You hear about the kids who commit suicide or hurt themselves and wonder how the parents didn't know. I do not want to be one of those parents. What can I do? via /r/Parenting https://ift.tt/2J5TEhO