Horrible health

Well found out that on top of low Bp my heat condition is back. Haven't had the problem in over 2 years and then 2 nights ago I couldn't breath and my heart stopped then restarted itself every couple minutes on a regular basis since. It's kind of like a murmur but worse you can feel every time it stops and restarts like a cannon going off and I can't breath. It seriously causes bad pain and worse breathing... And now won't go away...