Have you ever felt your heart working sooooo hard when you lift heavy weights at that last rep when you can`t keep going anymore? I am not talking about pain.

I have checked my heart and it works perfectly but I just wonder if anyone else has felt that. Ok I am not asking for medical advice, don`t misunderstand me. I am thinking of visiting a doctor again just to make sure things work fine.

I know that blood pressure increases drastically when lifting so perhaps that`s why I feel my heart working hard.