Based on your description:
• Sudden lightheadedness after eating
• Ghabrahat (uneasiness)
• Pulse fluctuating 110–125 for a few seconds
• Feeling like you will pass out
• Symptoms settled within 10 minutes
• History of anxiety
• On Concor 1.25 (bisoprolol)
This episode sounds much more like a panic/autonomic surge or post-meal sympathetic response, NOT atrial fibrillation.
Why this is unlikely AFib:
• AFib usually causes irregularly irregular rhythm, not just brief increase
• It typically lasts longer than a few seconds
• Pulse stays irregular, not just slightly fast
• You would feel chaotic heartbeat, not just anxiety surge
Post-meal factors that can cause this:
• Blood shifting to gut (postprandial hypotension)
• Anxiety trigger
• Gastric distension stimulating vagus nerve
• Checking pulse repeatedly increases adrenaline
Also important:
Pulse 110–125 briefly is sinus tachycardia range — common in anxiety.
AFib at 26 with no structural heart disease is uncommon.
Next Steps
To rule out properly (for peace of mind):
✔ One ECG (if not done recently)
✔ 24-hour Holter monitor if episodes repeat
✔ Check
thyroid function
✔ Check hemoglobin
✔ Check
Vitamin D &
B12 (if fatigue present)
During next episode:
• Do NOT repeatedly check pulse
• Sit down
• Take 5 slow deep breaths
• Time the episode calmly
If:
• Pulse becomes very irregular
• Episode lasts >20–30 minutes
• Chest pain
• Fainting
→ Seek urgent care
Otherwise, this sounds autonomic/anxiety driven.
Health Tips
✔ Avoid heavy meals
✔ Reduce caffeine
✔ Continue Concor as prescribed
✔ Practice slow breathing daily (even when fine)
✔ Stop googling AFib repeatedly — it reinforces anxiety loop
Key difference:
AFib feels chaotic and sustained.
Anxiety tachycardia feels intense but settles quickly.
Your episode settling in 10 minutes strongly suggests stress/autonomic cause.
If these episodes are recurring and fear of AFib is increasing your anxiety, we should evaluate properly once and close this loop scientifically.
Booking an online consultation will allow structured cardiac risk assessment and help you break this fear cycle safely and permanently.