I've Had Strange Thumps In My Heart It Literally Feels

I've had strange thumps in my heart it literally feels like its coming out of my chest but I'm not sure if I go to the hospital or if I just wait I've had them for over 3 years or more and their suddenly getting worst
Sometimes I collapse and get up like nothing happened cut it doesnt hurt anymore
I'm only 16 should I go to the er