Dear friend, welcome and thanks for entrusting your query here at HCM!
I am Dr. Prasad Akole (Critical Care Expert- http://bit.ly/Dr-Prasad-Akole) and am glad to address to your query here.
is not known to cause any heart rhythm disturbances.
Tamiflu could rarely cause heart arrhythmia
, but not so late. It is not a common side effect.
If you still have skipped beats and are an active flyer, it is better to seek medical advice
, get an EKG done (or a holter monitoring ) to look for any serious heart rhythm.
Your otherwise healthy lifestyle does not suggest any problem.
Rarely, viral carditis
(heart muscle inflammation
) can cause rhythm disturbances.
Do you get giddiness, sweating, breathlessness or any other symptom?
It is better to be evaluated by a physician.
I hope you are fully satisfied with the guidance I gave.
I would be glad to answer any further queries. Please ask for any clarifications before closing and rating this answer.
Thank you and Good luck!