Dreamed of having a heart attack or did I actually have one?

About two out of three nights I dreamed of having a heart attack and it felt real. Felt like my chest was tightening up, heart was racing and I could barley breathe. When I woke up I felt ok. I wasn’t sweating. I wasn’t sore or anything. So could of it just been a dream or real? Lately been having dreams of fighting and having my heart racing as well. What causes that? I am 30. I am not in the best shape but I do cardio every single day. I do suffer from PVCs which is a type of arrhythmia but I take meds for it and my cardiologist says it’s benign. Last time I did tests for my heart was back in October/November 2020 and all the tests came back fine due to my almost passing out at work. (Ct scan of heart, countless ekgs, and echocardiogram) earlier that year as well i did a nuclear stress test and that came back fine. So could these dreams just be dreams? Or actually heart racing? Or even heart attacks?