Contractions pain

Nancy
I had really long labor of 31hrs and beared contractions for 10 hrs after which they gave me narcotics and epidural at 4cm dilation. It took me 14 hrs to get to 10cm dilation and then five hours for pushing. The only thing in my mind was that this pain is worth it.
I had another friend who bragged that she had contractions at 4cm and she didnt even feel it.
So i want to know does i have low level of threshold for pain or everyone has different body and hence she didnt felt any contractions on 4cm dilation while i felt like I am dying. Please girls suggest as i felt great of delivery my baby even after bearing so much pain, but this friend made me think about this great feeling.