Deeply Worried

On my way home fom the park with the toddler I had a text from my sister saying that my dad has been admitted to the hospital. I guess he finally gave in. Both my brother and my sister called him and helped talk him into going. They called an ambulance which arrived after 2 hours!!! All I know for now is that he'd had some chest pain which he never conveyed to me or my mother, only to the paramedics. He didn't want to worry anyone. They did an initial ECG in the field which was inconclusive. He also had a temp of 101. I honestly think I'm going to kill him. Why didn't he listen to me yesteday? Right now all I can do is wait.