Hello doctor I have racing heartbeat when I stand or sit sometimes.it feels like some pressure is coming from head to neck and get palipitation like feeling. What is the cause ? My bp is NormaI and pulse is also normal .also I done ecg and 2d echo test all were normal.I also did blood test it was normal.and I have gone
thyroid test there is a increase in
tsh. And I'm worried about my health always. What is the reason ? Pls help me.is this anything heart related?