So, a few weeks ago I had an edible which caused me to have a rapid heart rate and end up in the ER because I thought I was dying. I don’t know if this caused anxiety / trauma but now I feel sudden palpitations. I went to the cardiologist and they did an EKG, an echocardiogram gram and even gave me a heart monitor to wear for 3 days. All my tests came back good and normal. But I keep telling my self what if they are wrong and I actually have (Afib)... am i just having panic attacks?