@jessl, I hope your meeting today with your cardiologist goes well and your long-term discomfort from nausea is in the direct focus of your medical team. @colleenyoung wondered if I have any suggestions on what to think about and ask about.

While I'm an a-fib patient, I have had no treatment for it -- only Warfarin therapy to head off any blood clots that might develop when blood is not moving steadily through my heart. But I did look into the nausea side effect. One source I found helpful was http://www.mayoclinic.org/diseases-conditions/atrial-fibrillation/symptoms-causes/dxc-20164936?_ga=1.222258651.2144214242.1475804588, an article devoted to a-fib and not bypass surgery. However, there was a brief, clear statement on nausea side effects: They are usually caused by medications -- often antiarrythmic drugs used to suppress irregular heart beats, including Dofetilide (Tikosyn); Flecainide; Propafenone (Rythmol); Amiodarone (Cordarone, Pacerone); or Sotalol (Betapace, Sorine). Some other drugs also might be involved -- common beta blockers and calcium channel blockers, for example, as well as drugs that individual cardiologists prescribe for off-label use in special or emergency cases. One other cause of nausea I read about is related to liver dysfunction when a heart problem reduces the liver's blood supply.

Be wary of this information, though. It comes from good sources, but is filtered through me who am not a medical professional. If this kind of information didn't come up in your appointment with the cardiologist -- and your nausea continues -- I'd suggest that you get back in touch with him/her right away -- or get a second opinion from another cardiologist.