Yep......did a series of herniated discs--then went for surgery..........before all that I was riding--just casual stuff--sometimes it hurt and sometimes it didn't. It was After surgery-for 12 weeks--that I was not allowed to ride-not because I would be bent forward over the bike--but because it was crucial to Not swing the hips up and down-that side to side rocking motion you get if the seat is too high...............Anyway--I switched to a hybrid after all that, and my handlebars are straight across--and I am pretty upright in the saddle--with good seat placement--and I don't get pain. I would trigger some old sciatica--in the process of finding just the right seat to fit my sit bones. I am doing fine since that has been solved...............I would not have had surgery if I had been okay with physio-but-unfotunately for me--conservative treatment didn't fix it............Don't get discouraged--back pain doesn't last forever! Most folks Do resolve on their own.