Pain and fast heart rate during tumescent liposuction

I had tumescent liposuction 3 days ago. I was given oxycodone, ambien, and ativan on the day on the procedure. I was very drugged, but during the procedure, I was in quite a bit of pain. It was almost unbearable, but I made it through. I remember repetitively looking at the heart rate monitor and my heart rate was around 130bpm the whole time (resting HR 85-90bpm).So my question: was my heat rate elevated from the pain, or could it have been elevated from the epinephrine in the tumescent fluid?