I am a 36 year old Male who weights 290 pounds, and about four days back my heart rate suddenly plummeted from being on the higher end at rest to suddenly 45-50. I keep waiting for it to change but it will not. I went to the emergency room and they gave me all sorts of blood tests, ekg, xray and came back that even though this is happening there is nothing they can do at this moment and that I will need to see a cardiologist. It is going to take a while to get an appointment and see one and my fear that I am going to die is not going away. I wish I could calm myself down but my mind is entirely wrapped up in my heart rate. I constantly am checking it on BP cuff, multiple oximeters and hoping it will change. It isn't changing if anything it might be even a little worst now today and staying at 45 more than 50. I just want my heart rate to go back to normal. The anxiety surrounding this is overwhelming and I have posted to pretty much every medical subreddit in hopes anyone could help me. I feel like crap, tired and alone.