I have DDD ( digenerative disk disease) spinal stanosis, myomylacia, lessions on my spinal cord, 2 ruptured lumbar disk which pinch off nerves, 5 buldging disk in my middle back, one ruptured disk in my neck that is on my spinal canal. and of course the narrowing of the rest of the disks.. I have been on Percocet 10/325 for over 4 years, But here lately I have been throwing my back out at least 3 times a month and it causes me to be in bed for 3 days at a time.. I have noticed that i'm not getting pain relife the way that I use to.. Is this normal? Can I ask for something stronger without seeming like an addict? What is the normal time for building up a tolerance? I have MRIs once a year and every year they get worse.. Any advice or help would be great.. I feel lost and because of my age I find it hard to get answers from my Dr when it comes to medication.. I have never had it raised before.. By the way I'm 31..