Had pacemaker fitted in January for bradycardia and it alleviated dizziness etc (set to kick in at 50 bpm). Had some ongoing draining sensations in my chest some evenings (like ribcage being slowly tugged downwards) but mostly went away. When I mentioned at most recent pacemaker check up in September, they adjusted to 60 bpm. Was absolutely fine for 4 weeks with no symptoms at all then suddenly since last week, I now have strange sensations in my chest again. But they are far more regular, at various points in the day, going on for several minutes at times, and now feels more like a slight crushing sensation. Not dizzy or lightheaded, and no pain. It comes and goes whatever I might be doing, and is very worrying. Anyone have a similar sensation please?