I wouldn’t jump the gun and say you’re screwed my friend.
I think nearly half of all Americans are VitD deficient.
I also recently found out I’m deficient, and have begun supplementing.
If anything I like to think proper supplementation should improve some of your symptoms. At least that’s what I’m hoping for.
Does your body show any heightened inflamation markers? I’m diagnosed with colitis and one of the symptoms is lower back pain & joint pain. I don’t particularly have either, but I’ve noticed an increase in my joints popping recently.
I’m hoping I can stop the popping as well by supplementing with VitD and reducing my malabsorption by treating my colitis.
However, I would caution before you take my path and diagnosis. I actually had a colonoscopy where a gastroenterologist confirmed ulcers and inflammation in my colon.