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What you are feeling is very likely normal sinus bradycardia + increased awareness of normal heart rhythm variation when lying down, made worse by anxiety/panic and the mild beta-blocker effect. Here’s why this pattern fits perfectly: • Lying flat → vagal tone increases (parasympathetic nervous system dominance) → heart rate naturally slows by 10–20 bpm in many healthy people (this is normal, called nocturnal bradycardia). • Beta-blocker (even mild dose) makes this slowing more noticeable because it already lowers resting heart rate and blunts the normal compensatory increase. • When you feel the “pause” or slow beat → you get anxious → adrenaline surges → heart rate jumps up suddenly (this is classic panic cycle). • Oximeter reading drops to 50 bpm → likely real temporary slowing (vagal + beta-blocker), but not dangerous because it quickly corrects itself when you panic/move/sit up. • No symptoms like dizziness, fainting, chest pain, or breathlessness during these episodes → very reassuring. This is not a new heart block or serious arrhythmia — it is the combination of • normal physiological slowing when lying down • mild beta-blocker effect • heightened anxiety making every slow beat feel like a long pause

You have to check ur sleep bp iron hydration status electrolytes ecg echo holter test stress test thyroid hormone status..look for heart failure renal failure or organ dysfunction..thus cud rule out diseases and may be medicine may be the cause..controlling sympathetic activity..

You are 28yrs and unless you have a specific heart condition that needs betablockers, you shouldn’t need to take it. Stop the beta-blocker and see how you are. All the best. J G S R clinic

Need your detailed history kindly consult on practo

Need few more details for proper understanding of your issue. You can consult with me online on Practo or whatsapp on eight three one eight four six nine eight eight six for proper diagnosis, conclusion and management

Yes it is concerning. Better get yourself medically examined.

Can help you, kindly consult and provide detailed history for proper diagnosis and further management

Why are you on beta blocker Do you have any symptoms Dm me for advice

Get thyroid profile, ecg, done and share results. Stop beta blocker for 2 toʻ 3 days and watch the pulse.

Body is relaxed during sleep , metabolism is slow down and body organs like heart and other organs do less function compared to day time.you take also beta blocker ,there function also slower the heart rate, so no worry , its happen sometime.

Hello Thanks for sharing quary B blocker priscribe by doctor and what reason? elaborate more Fell pluse on wrist radial artery for 1 min If there is a missed beat then consult ur doctor

Need a few more details please consult for further evaluation and treatment

Need to check vitals twice daily