I ve dealt with anxiety for almost half a year now and its really bothering me. I thought I was going to have a heart attack one day because my chest hurt, but it turned out to be the cause of costo chondritis. However, the doctor also said I had anxiety. Since that day, I ve started to pay really close attention to my heart beat, and always find it hard to breathe only when i do pay attention to my breathing? How can I stop this anxiety problem? Also, my costo chondritis never healed, can that be causing the hard to breathe problem? I m 16 btw. ty.