Tight chess and SOB

I am 26 yo male 25 stone lost 2 stone in past 2 months I have high blood pressure which on ramiprill for and I take lanzoprazole,January 1st started getting what feels like eptopic beats wher my heart would stop for a second before beating again week later started getting mild shortness of breathe. For pass week sob have been very bad I can’t lie down without feeling I’m being restricted and I can’t sleep as I feel like I can’t breathe, I can’t walk as far anymore without being out of breathe. I’ve had ecg done with was normal doctor listen to chest and said sounds clear and heart sounds normal had chest x ray done last week which was normal. I constantly feel like I’m being restricted on breathing and chest pains stabbing. I just feel like there is an issue with my heart which is getting worse but no doctor is listening or believing me.