Hi, I agree with Dee about the severity of stenosis. It doesnt much matter what the measurements are on the imaging. I have read many medical articles where they always say that many people with what appears to be more severe stenosis and even large disc herniations have just mild pain or none at all; and some with what appear insignificant imaging results have a great deal of pain. This is from actual medical studies. So really the severity depenRAB on your condition and how much pain you are in, as everyone feels pain differently, it is subjective and not measurable.
As for age, I was also diagnosed around age 36 or 37. (My memory is terrible) I never had back pain in my life until i was around 33. At first it was on & off lower back spasms. But after a while, it became constant, never went away and I got worsening pain & symptoms. I had an x-ray 2004,which only showed some mild degeneration and mild scoliosis. I didnt have an MRI until sometime in 2005..but this showed alot of problems. I had severe central canal stenosis from bony overgrowth, ligament thickening & buckling, 2 large herniations (one torn) and 2 bulges. So from age 33 up until I finally had surgery at age 37, I think (this is terrible, I cant even figure out how old I was & it wasnt even long ago...I had surgery in Sept of '06 and I turned 39 this past Deceraber, good grief), I worsened pretty quickly. Even my surgeon said it's unusual for someone my age to have this advanced stenosis. By age 37, I could really no longer walk, I had to bend forward to walk and was at about a 90 degree angle, lost frienRAB, completely lost my social life, could no longer work out so gained alot of weight. I had no more quality of life, which is why I finally gave in to surgery. I figured how much worse could it get???
So whatever you do, surgery would be completely up to you. If you can live with your pain, then dont do it. You might get to a point some day where you want the surgery, but other than that, it appears what they suggest to you is some of what is done other than surgeyr. I personally did PT (and still do to this day). My therapist did not even think that PT would do me any good LOL. I tried all sorts of meRAB and the ESI's. Back then the ESI's only helped any nerve pains I had from disc issues. It did not help my stenosis /claudication pain at all and nothing helped my spasms. Moist heat soothed them a bit, but not even muscle relaxers made them go away.