Chest pain and PAH?

Elliot is more aware of his disease and for the first time he doesn't want to take his medicines without us arguing with him. He often wants us to read a book about a girl who goes through the same kind of heart surgery that he did. In the book the surgery is performed by a doctor named Torsten and every time we read for him he says: “the doctor that mended my heart, his name is also Torsten”. And that is correct, it is the same doctor. Carolinas hjärta (Carolina’s heart) is the title of the book and I can recommend it if you know Swedish.
Quit often he says: "can you feel how much my heart is pounding". During our Christmas holiday Elliot said that it is aching in his chest, when we asked him if he had felt pain in the chest before he said yes but he also said that he deliberately had not told us so that we would not worry. When we asked Elliott’s doctor about this he told us that PAH patients can feel chest pains but that it is not common. Does anybody have similar experiences?
 Otherwise it is status quo, which is positive. Mentally he is preparing for school that starts this fall. He is curious and a bit nervous as most kids are.