In 1st trimester and often experience hard heart beatings and simply uneasy in my chest area. Help?

Hi, not sure if it’s considered similar symptoms to you, but I do feel that I get breathless more easily than before. I find my hard beating harder and faster after I climb up one floor of stairs. I didn’t get myself checked, but the gynae did remind me that if I get breathless often and it’s get more severe, it’s important to get checked by the gynae.