Is it Possible to Have a Tummy Tuck if I Have an Arrhythmia?

The gold standard of arrhythmia diagnosis is an EKG.  "Sinking feelings" in the chest may or may not be related to the heart rhythm.  At 35, cardiac issues are unlikely.  But it is wise to sort these issues out prior to surgery.  Even if your surgery must be delayed, I would attain a thorough workup.  Because this surgery is elective, risks should be absolutely minimized.  Good luck!!

Your instincts are correct, and the only sensible alternative is to contact your primary doctor and have the EKG to confirm that everything is a go for surgery. It may be anxiety, but best practice tells us we need to know. If the time pressure is concerning you, reschedule your procedure.
Best of luck,
peterejohnsonmd