I did not have afib or irregular heartbeat from Keytruda. I did get afib after surgery five years earlier for the upper right lobe removal - it inflamed that area around my heart. I realized over time that something I was drinking could set it off - coke or pepsi as it is heavy in caffeine and carbonation and sugar. In fact the hospital has it on my chart that it is poison to me - LOL.

I’ve experienced musculoskeletal pain so much so that I couldn’t walk or bear weight on my hip. I’ve experienced unusual brain fog periodically and that too was definitely beyond the norm. The fatigue has been extreme but thankfully a few days here and there. When it hits it hits hard.

What I’d like to say is this…that 20% your doc told you is probably much higher. I was told to report any side effects but when I did about my hip & shoulder pain he just laughed and said it can’t be the Keytruda because it wouldn’t be just in one side. I know my body and I know these are all things not normal for me. It seems to me that these docs really don’t want to hear about it. Be your own self advocate and don’t hesitate to stand up for yourself. My doc gave me a course of steroids that worked and I’ve been pain free for now. The cancer scan showed no sign of cancer in my body now and I have 2 more treatments of Keytruda. I’m very happy and thankful but I also will be glad to be off of it. Good luck to you.