As others have mentioned, different people feel pain differently. I've read accounts of some for whom SRS was one big OUCH!!! For me, I didn't really have any pain issues - just discomfort post-op (mainly while I was stuck in the bed in the hospital, during the first week post-op).
My big source of pain post-SRS, was from something altogether different. I experienced a major climate change traveling from the northern US in late November (with winter approaching) for my surgery, to the warm and humid conditions in Thailand. This change (as occasionally happens to me when I'm subjected to major temperature changes) triggered my cluster headaches, (which at the time were undiagnosed for me [so I had no meds to stop the headaches]), and I ended up having to deal with them from about 3 days post-op, until after I got back from Thailand 3 plus weeks later. Cluster headaches don't last as long as migraines, but they're far more painful. It's no fun doing a 2 hour dilation session (and experiencing the general discomfort you have during the first few weeks you dilate) while trying to fight/deal with a severe cluster headache attack. Some of the other post-op Suporn girls I was friends with at the hotel most of us stayed in post-surgery, told me I looked downright burned out after dilating, and having suffered a cluster headache attack, while doing it. Yep, SRS (and even dilation for that matter) is nothing compared to cluster headaches.