I was given Ibuprofen in the hospital after my C-section and continued to take for the pain once I got home (though I can't remember how much I took). It was the only thing they gave at the hospital and told me to take because of BFing. I was still concerned with taking it so I tried not to though this resulted in extended pain. I'm surprised to hear of the heart thing, where did you read this and what exactly were the details?