i dont believe my doctor

so ive been have palpitations alot lately, and i did  a ECG a few weeks ago, they said my heart was healthy, im 14 yrs old, and then i did blood test, everything was good except my vitamin d was low, and and then today i went to a cardiologist and she did a ECG and everything was good, yesterday i did  a heart ultrasound and everything was good, my cardiologist said its nothing to worry about, and said its common for people my age to have, and said to exercise regularly, and said to get good sleep patterns, i have anxiety, and said alot of people have gone to emergency coz they have mistaken heart problems with anxiety etc, but i dont know why, i dont believe her, i feel like their is something wrong with me

It’s ok sweetie I have aniexty as well that I have tightness under my chest often I have done all test and they say nicking is wrong but it’s scary .. I am living with it to this day but I always lay down take deep breaths and relax I also try not to over think myself because when I do it becomes very tight .. I hope you get better what exactly is wrong with you ..

It’s ok sweetie I have aniexty as well that I have tightness under my chest often I have done all test and they say nothing is wrong but it’s scary .. I am living with it to this day but I always lay down take deep breaths and relax I also try not to over think myself because when I do it becomes very tight .. I hope you get better what exactly is wrong with you ..

I'm 17 and have the exact same issue that you are having, Ive been to the hospital probably 8 times in the 3 weeks. Ive a ton of ECG, blood test, chest X-rays, I even had a ultrasound on my heart the 3rd of May. The doctors keep telling me my heart is perfectly normally and healthy, but I'm still experiencing all the symptoms. so I'm in the same boat, just keep your head up. if you need to go back, then do it dont be afraid. Rather be safe than sorry you know!