Hello
i was wondering if anybody could help me...my average heart beat is around 120-150 just normaly and when resting about 100. also, i frequently get skipped beats followed by a pounding heart beat and my heart rate will speed up dramatically then slow down. Sometimes too, i'll get an other heart sound sorta like "lub-tri-bud-lub-tri-dub". also, when i'm just laying down or sitting, i can feel my heart beating extreamly hard plus, my heart is really loud too. Is all this nomral?

please help!