I've been ill with ME for 4 years, and I usually only have problems with fast heart rate but sometimes I get horrible feeling in my chest. It feels as if my heart is weak, although when I feel my pulse the heart beats seem of normal strength. And then I start having these thumps in my chest which feel like my heart is punching from the inside. Reading about it online I think I probably have PAC or PVC. I've worn Holter monitor twice but it has never managed to catch them. Yesterday they started again. I was feeling my pulse in my neck and I could clearly feel that my heart stopped. It's an eerie experience waiting to see if my heart will ever start beating again. The cardiologist reassured me it's harmless and prescribed beta blockers for tachycardia because I apparently get it even while sleeping. My heart doesn't race any more, which is great, but these pauses in the heartbeat are still freaking me out. I get other weird symptoms occasionally, like my breathing getting so quick that my airways get dry and hurt, but none of it scares me the way heart does. Does anyone else get this? Is it normal symptom of ME?