Scared for echocardiogram results😭

So I’ve had a fast heart rate ever since I had covid and today I finally got an echocardiogram I was really anxious all week for it, but convinced myself I would calm down once it was time to get it but I literally couldn’t my heart was beating so fast and I was shaking while waiting for the nurse. I tried to keep calm during our conversation but I couldn’t help but look at the screen and try to read her face for any expressions of concern. What if the results were bad and that’s why she was having so much conversation with me so I wouldn’t look. When we were done I asked how long for the results and she told me about a week, and now I’m freaking out even more because I thought the results would be instant and now I have to wait a week to find out if something is wrong. I asked her if there’s anything she can tell me and told her I’m really anxious, but she told me she couldn’t tell me anything and said “I wouldn’t worry too much” but I feel like if it was good news she would’ve just said she wouldn’t worry 😭😭. After the appointment I tried to hold back tears the whole way home while my bf drove and then I just cried in the shower and I can’t stop crying because I’m scared something is wrong 😭😭😭 I’ve been watching echocardiogram videos trying to compare something to mine from what I remember , but I can’t find anything I’ve been looking up normal vs abnormal pictures but honestly nothing will help since I don’t know what I’m looking for. I’m just really scared I’m only 21 I don’t want life changing bad news. Has anyone else had an echocardiogram for a fast heart rate? What was wrong? Please somebody just help give me peace of mind😭