My heart was beating so fast

I still can't get over the fact that I felt my fast heartbeat in a nightmare why? How could it happened? Though I was going to have a heart attack in my sleep but I survived why????? --- Send in a voice message: https://anchor.fm/bigdcountry/message Support this podcast: <a href="https://anchor.fm/bigdcountry/support" rel="payment">https://anchor.fm/bigdcountry/support</a>